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Emergence Protocol, Book One of The Blind Spot Trilogy

CHAPTER ONE: THE LADDER PROBLEM

The ladder problem was the best problem in the entire AP Calculus curriculum, and Marcus Hale had spent fourteen years trying to convince teenagers of this.

"A ten-foot ladder," he said, drawing it on the board, badly. "Leaning against a wall. The bottom slides away from the wall at two feet per second, because somebody didn't secure it, because somebody never secures anything, and now we have a physics problem."

"That's your ladder?" Devon Alcaraz said from the second row.

"That's my ladder."

"It looks like a hot dog."

"It's a ladder in perspective."

"It's a hot dog leaning on a wall."

"Then it's a hot dog," Marcus said, "and the hot dog is sliding, and I need to know how fast the top of the hot dog is falling when the bottom is six feet from the wall. Somebody give me the relationship."

Twenty-two juniors, fourth period, the good light coming through the east windows and landing across the desks in long yellow bars. Lila Park had her hand up before he finished the sentence, which was Lila. Devon was still drawing something in the margin of his notes that Marcus suspected was the hot dog. In the back corner, Theo Weiss had his chin on his fist and was doing the thing he did where he looked half asleep and then said something devastating.

"Pythagorean," Lila said. "x squared plus y squared equals a hundred."

"Yes. Good. Now differentiate it."

They worked. He loved this part — the four or five seconds where a room full of seventeen-year-olds went quiet because they were actually thinking. Pencils. Somebody's chair leg. The radiator under the window doing what the radiator did. He walked the aisle while they worked, hands behind his back, not looking over anybody's shoulder in a way they'd feel. He'd been walking this aisle since he was twenty-four years old and had not gotten tired of the sound once.

"Two x dx/dt plus two y dy/dt equals zero," Lila said.

"Equals zero because."

"Because a hundred doesn't change."

"Because a hundred," Marcus said, "has never changed in its life. A hundred is the most reliable friend any of you will ever have."

Renata Osei sat in the third row, second seat, and she was looking at her desk.

Three weeks ago Renata had been the first hand up on every problem, and not just first — first with the good question, the one that went sideways past the answer into whatever was underneath it. In October she'd asked him whether the derivative was really the slope or whether the slope was just the part of the derivative you could draw. He'd been so pleased he'd stood there for a second without saying anything, and then he'd spent the rest of the period on it, and afterward Devon had complained that Renata had derailed the whole class, and Renata had said you're welcome, and Marcus had had to turn around and look at the board.

Now she came in on time, sat down, opened her notebook, and looked at the desk.

He got to the front of the room again. "Somebody tell me what happens to dy/dt as x gets close to ten."

Theo lifted his chin. "It blows up."

"Blows up how."

"Goes to infinity."

"Which means what, physically."

"That the top of the ladder is falling infinitely fast." Theo considered this. "Which is stupid."

"It's beautiful," Marcus said. "Renata. Is Theo right?"

She didn't look up. But she answered, quietly, in the voice she used now that was still exactly correct and had nothing in it. "The model breaks before the ladder does. The ladder leaves the wall."

"Right," he said. "The math is telling us the truth and the truth is that our assumptions stop working. Which is the most honest thing math ever does."

He let it go. He wanted to stand there and ask her what was wrong in front of twenty-one other kids, which was exactly why he didn't.

The bell went. Chairs scraped. Devon put the hot dog drawing on Marcus's desk on the way out, face up, and Marcus said thank you without looking at it, and then looked at it, and it was very good.

* * *

The room emptied out. Marcus sat down at his desk with the stack of exit slips and uncapped a pen.

Blue ballpoint. The one from yesterday. There were four more in the drawer and they were all identical and this was not a special pen.

He was thinking about Renata.

Three weeks ago: grades perfect, hand up, the good questions. Two weeks ago: hand down. Last week she'd moved to the back row, which was a thing kids did when they wanted to stop being seen, and then this week she'd moved back up to the third row, which was a thing kids did when — he didn't know what that was a thing kids did when. And she'd stopped turning in homework entirely, but she was still getting the answers right out loud, which meant she was still doing the work and just not handing it in, which was a different problem than not doing the work, and a stranger one, and there was a shape to it he almost had —

The pen was not on the desk.

The pen was about six inches above the desk, turning slowly on its long axis, the way something turns when it's floating in water. The clip caught the window light once as it came around.

Marcus looked at it.

The first thing he felt was not fear. He would think about that later, and be a little proud of it, and also wonder what it said about him. The first thing he felt was interest — the specific bright forward lean of encountering a thing that shouldn't be there. And then, coming up underneath it like heat through a floor, delight.

He laughed. Once, quietly, in an empty classroom. At the pen. At himself for laughing. At the universe for apparently having this in it the whole time and not mentioning it.

"Oh," he said out loud. "Oh, that's wonderful."

He put his hand out, palm up, the way you'd offer a hand to a nervous dog, and closed his fingers around the pen. It came to him. It weighed what a pen weighs.

He looked at the pen. He looked at the empty air above the desk where the pen had been. He looked at the door — nobody, hallway noise, somebody's locker. He looked at the pen again.

Then he set it down on the desk blotter and thought up.

The pen went up. Not shaky. Not effortful. It was on the blotter, and then it was four inches above the blotter, and there was no moment in between that he could point to.

His glasses fogged. That happened when he got worked up about something — it had happened at his brother's wedding and it happened every year when a class finally got the fundamental theorem — and it happened now, both lenses going soft at the bottom edge.

He took them off, wiped them on his shirt, put them back on, and laughed again.

* * *

He had ten minutes until lunch and he spent all ten of them playing.

Door closed. Shades left alone, because closing the shades would have looked like a man with something to hide, and Marcus was giddy rather than stupid. He lined up three pens on the desk and lifted them one at a time, then all three at once, which he could do, though they wobbled and drifted toward each other like they were magnetized, and after about four seconds two of them knocked together and fell.

"Okay," he said. "So that's a thing."

He tried the grade book. Nothing. Not a wobble, not a shiver, nothing — no sense of straining against a weight, just an absence where the thing had been. It didn't feel like failing to lift something heavy. It felt like reaching for a light switch in a room that didn't have one.

The stapler went up two inches and came back down hard enough to make a noise.

He got out a fresh exit slip and wrote at the top of it, STUFF I KNOW SO FAR, and underlined it, and then sat there for a second grinning at his own handwriting, which really was bad.

He worked it like a class. Does it matter how far away the thing is? He put a pen on the windowsill and stood at the door, which was maybe eighteen feet, and it went up. Not as easily. Like the difference between talking to someone in the room and talking to someone across a parking lot.

Does it matter if I can see it? He put a pen in the drawer and closed the drawer and thought at it as hard as he could and got the light-switch nothing again. Opened the drawer. There it was. Up it went.

"Line of sight," he said. "Or something like line of sight."

Does it matter what it's made of? Metal pen: fine. Plastic pen: fine. His keys, which were metal and plastic and a rubber fob from the gym he'd been to twice: fine, and heavier, and he had to actually pay attention. The keys went up and hung there and turned, and the sound they made was the sound keys make in a pocket, and it was somehow the sound that got him — that it made a real noise, that it was really happening in a room with air in it.

Does it matter if I'm looking right at it, or just facing it? This one he couldn't get a clean answer to. He put a pen at the far end of the desk and stared at the door and thought at it sideways, and it came up, sort of, tilting, the way something comes up when you're lifting it one-handed and badly. So — not eyes exactly. Attention. Which was a much stranger thing to be told about the universe than eyes, and he stood there in front of his own desk for a second with that one turning over.

He was smiling so hard his face hurt.

He tried his coffee mug last. It was two-thirds full and still steaming and it was the mug his sister had given him that said WORLD'S OKAYEST TEACHER, and lifting it felt roughly like carrying a full mug across a room while holding a conversation — perfectly possible, requiring exactly enough attention that you'd notice if you stopped paying it. It crossed the desk about a foot up, level, the coffee inside it moving in a slow circle, and he set it down on the far corner without spilling a drop.

He sat back in his chair and looked at it.

"That is the coolest thing I have ever seen," he said, to nobody, and then he laughed out loud, really laughed, in an empty classroom, alone, at ten past noon on a Tuesday.

His glasses fogged again. He left them.

* * *

He did not tell anyone at lunch.

He'd decided that somewhere between his classroom and the stairs, and it wasn't a hard decision, and it wasn't fear. It was that he didn't know what it was yet. You didn't announce a result you hadn't checked. He was going to sit with it for a day, and then probably for another day, and figure out what he actually had before he handed it to anybody else.

The teachers' lounge smelled like the microwave and had a couch that had been condemned by three separate people without anyone removing it. Marcus got the last coffee, which was the coffee that had been sitting there since second period, and drank it anyway.

Elena Ortiz sat down across from him with a container of leftover something and looked at his face.

"What," she said.

"Nothing."

"You're grinning like a man who got a letter."

"I figured something out."

"Figured what out?"

"You'd have to be a math person."

"Thank God," Elena said. "Every time you explain one of those I lose a year." She peeled the lid off her lunch. "Is it the thing with the — you were talking about a thing last month. On the whiteboard in your kitchen."

"You remember my kitchen whiteboard."

"You've mentioned it eleven times."

"It's a good whiteboard," Marcus said. "And no. Different thing."

He ate for a minute. The lounge did its usual thing around them, the coach arguing with somebody about buses, a printer failing audibly down the hall, the microwave going and then going again because whoever it was had put in a full ninety seconds for a thing that needed thirty.

"You're doing the face," Elena said.

"What face."

"The one where you're having a good time in there and the rest of us have to wait." She pointed her fork at him. "Fine. Keep it. But when it turns out to be something boring about triangles I'm going to be very rude to you."

"It's not triangles."

"It's always triangles."

"Once," Marcus said. "It was triangles once."

"Hey," he said, a minute later. "You've got Renata Osei fifth period."

Elena's face changed a little. "Yeah."

"How is she in there?"

"She's not." Elena set her fork down. "She used to run that room. Now she sits there. Three, four weeks? I was going to bring it up at department on Thursday, see if it's just me."

"It's not just you."

"Figured." She looked at him. "Do you know something I don't?"

"No," Marcus said. "That's the problem." He turned the coffee cup around on the table. "Let me try something first. Before Thursday."

"Try what?"

"Talking to her."

Elena made a face that was affectionate and unconvinced at the same time, which was a face she'd gotten very good at over six years of being his friend. "You know that a seventeen-year-old girl who has decided not to talk about something is roughly the hardest object in the universe."

"I've got a good record with hard problems," Marcus said, and then heard it, and thought about the pen, and had to look at his sandwich for a second.

He was quiet for the rest of lunch. Elena noticed and let him be.

* * *

He caught up to Renata on Vanderbilt, a block from the building, in the loose crowd of kids that spilled south every afternoon at three.

He didn't get in front of her. He came up beside her, at her walking speed, and matched it, and said, "Hey."

"Hi, Mr. Hale."

She had her bag on one shoulder and her phone in her hand, not looking at it. Up close she looked tired in the specific way that isn't about sleep.

"You did good work on the ladder today," he said.

"Thanks."

"The thing about the model breaking before the ladder does — that was the answer I was fishing for. Nobody ever gets that in one go."

"It's in the reading."

"It's in the reading," Marcus agreed. "Nobody does the reading."

She almost smiled. It was there and then it wasn't.

They walked half a block. There was a guy selling mangoes on the corner and the light was that flat bright early-spring light that makes everything in Brooklyn look scrubbed. Somebody's speaker was going across the street. A truck was backing up somewhere behind them with the beeping.

He didn't ask her what was wrong. He'd thought about it for most of sixth period and landed on the fact that in fourteen years, exactly zero kids had ever answered that question, and the ones who wanted to tell him something had always told him sideways, on the way to something else, while both of them were looking at a piece of paper.

"There's a coffee place on the corner," Marcus said. "The good one, not the one that's a bank now. You want to grab something? On me. Ten minutes."

Renata looked at the sidewalk in front of her.

"No, thank you, Mr. Hale," she said.

And that was it. She wasn't rude about it. She didn't speed up or make an excuse or tell him she had somewhere to be. She just said no, thank you, in a voice with a door behind it, and kept walking at exactly the pace she'd been walking, and he stopped, and she went on without him.

He stood there and watched her go down to the corner and turn and disappear behind a bodega awning.

In his right pocket was a set of keys that, four hours ago, he had lifted eighteen inches into the air by thinking about it.

He put his hand in his pocket and held them and stood on the sidewalk on Vanderbilt Avenue, and he could not think of a single thing to do about Renata Osei.

He stood with the gap between those two facts and couldn't get it to close, and it was the first thing all day that hadn't been fun.

He walked home the long way, through Fort Greene, past the courts. There was a game on — five on five, older guys, somebody's little brother doing homework on the bench with his backpack for a desk. Marcus stopped and watched for a minute. Sunday mornings he played here and was genuinely, comprehensively bad, and they let him play anyway, and last month Ray had told him he had the worst jump shot on the eastern seaboard and Marcus had said statistically that seems unlikely and Ray had said no it doesn't.

He watched somebody miss a layup. He thought about the ball in the air. He thought, very briefly and very clearly, don't — and put his hands deeper in his pockets, and kept walking.

* * *

The apartment was the second floor of the corner brownstone on South Portland, where it met Willoughby, with radiators that came on whenever they felt like it and books on every surface that could hold a book. He dropped his bag by the door, and stood in his own kitchen, and grinned at nothing for about ten seconds.

Then he got to work.

The mug crossed the room this time — from the counter to the table, six feet, no wobble. Three books at once off the shelf, held in the air in a rough triangle, as long as he could see all three; when he turned his head, the one that left his vision came down on the arm of the chair. He got a pen going in a circle around his own head, which was pointless and made him laugh, and then he stood in the middle of his living room and looked at the couch.

He tried the couch for about a minute and a half.

Nothing. Not a groan, not a shift, not a millimeter. The light-switch-in-a-room-with-no-switch feeling, but bigger, like standing at the edge of something and finding out where the edge was.

"Fair," he said to the couch, out loud. "Fair enough."

The whiteboard in the kitchen had a differential equation on it that he'd been thinking about since the second week of February. It was a good equation. He'd made real progress on it. He stood there for a second with the eraser in his hand, feeling slightly guilty, and then wiped the whole thing off in four strokes.

At the top he wrote: WHAT IS HAPPENING TO ME? and underlined it twice, and then stood back and looked at his own handwriting and said, "God, that's bad."

Underneath he wrote Things I know: and started in.

He wrote that he had to be able to see it. He wrote that distance made it harder but didn't stop it, and put a question mark next to that because he'd only tested to about eighteen feet and eighteen feet was not a data set. He wrote that weight mattered and that the cutoff was somewhere between a coffee mug and a couch, which was an enormous gap, and he drew a big bracket in the middle of it and wrote FIND THIS. He wrote that it didn't seem to matter what the object was made of. He wrote that three small things at once was harder than one small thing, and that they interfered with each other, which was interesting, which was extremely interesting, because interference implied something with a shape to it —

He wrote that attention seemed to matter more than eyesight, and underlined attention, and then stood there with the marker against his lip for a while, because that one had teeth in it. If it was attention, then the limit wasn't a muscle. It was how much of himself he could put on a thing at once. And that was a limit you could presumably get better at, the way you got better at holding four things in your head instead of three, and the thought of that arrived with such a clean bright ring to it that he had to walk to the sink and back.

He wrote does it get bigger with practice? and boxed it.

He wrote for twenty minutes.

Then he stepped back with the marker still in his hand and read the whole board from the top, and his glasses fogged for the third time that day, and he said, out loud, to his kitchen:

"This is the coolest thing that has ever happened to a person."

He stood there.

"And I have no idea what it means," he said, quieter.

He capped the marker. He looked at the board a while longer — at the bracket in the middle of the weight range, at the question mark, at the two words at the top with the double underline.

Then he got a beer out of the fridge, and did not open it with his mind, because it seemed like a bad idea to find out that way whether he could do fine motor work, and sat down on the couch he could not lift.

* * *

He went to bed at eleven and did not sleep for a long time.

He lay there in the dark with his hands behind his head and thought about weight thresholds, and interference patterns, and whether see meant see or meant something more like know where it is, and whether there was a difference, and how you'd design a test to tell.

He was smiling. He caught himself at it twice and both times went right back to it.

And in between all of that, coming back around every few minutes like something caught in an eddy, he thought about a seventeen-year-old girl who could tell him exactly why the ladder leaves the wall and would not tell him anything else, walking away down Vanderbilt, saying no, thank you, Mr. Hale.

He'd try again Thursday. He'd think of something better than coffee.

He fell asleep somewhere after one.

* * *

Eleven forty-seven, a loft in the Bronx, three roommates asleep behind two walls. Naomi Ashcroft sat straight up with her hands over her ears, which did nothing, which she knew would do nothing, and which she did anyway. There was a new one. Underneath the traffic lights and the router chatter and the whole enormous murmuring city, something in Brooklyn had come on at about quarter past eleven that morning and had not gone off since. It didn't sound like a machine. It sounded like it was working something out. "Oh, you're joking," she said, to the dark, to nobody, "you're absolutely having a laugh," and reached for her laptop.

* * *CHAPTER TWO: LINE OF SIGHT

## NAOMI ASHCROFT

The alarm was wrong.

That was the first thing, before Naomi Ashcroft was properly awake enough to have a second thing: the alarm was wrong, it was the wrong sound, it was too many sounds. It was her phone and it was also a phone in the next room and it was also a phone somewhere past that, all three going at once in a chord that landed in her back teeth and stayed there.

She got a hand out from under the duvet and slapped at the nightstand and got the phone and the noise stopped.

All of it. All three. At once.

Naomi lay very still with her thumb on the screen.

Then she sat up, and the room was loud.

Not sound. That was the thing she kept trying to get her head around for the next several hours and could not, because there was no word for it that wasn't a lie — it wasn't sound, her ears were fine, she could hear the pipes and she could hear a bus outside doing bus things and none of that was the problem. Underneath it, or beside it, or in some direction that wasn't a direction, the router in the hallway was going like a kettle. Callum's laptop across the hall, which he never shut, was a low grinding hum with a texture to it, like someone chewing. The fridge downstairs in the Ruiz place was talking to something. The traffic light on the corner was clicking through its cycle and she could feel each click land, one, two, three, and she had never in her life known that a traffic light did anything at all.

She could not hear a single human voice.

She could hear every machine in the postcode.

"Right," she said out loud, to nobody. "Okay. That's not — okay."

Priya put her head around the door with her hair in the state Priya's hair was in before ten. "Was that your alarm? That was everyone's alarm."

Her voice was normal. Priya's voice was completely, boringly normal, coming in through the air like a voice, at the volume a voice was, and Naomi could hear it perfectly well, which meant her ears were fine, which meant it wasn't ears.

"I think something's wrong with me," Naomi said.

"You've been saying that since we met, love. Be more specific."

That was funny. It was actually funny, and some part of Naomi that was still functioning registered that Priya had been sitting on that one for a while, and she got about a quarter of a laugh out before her face did whatever her face did.

Priya stopped in the doorway. "Nay."

"Give me a minute."

"Do you want—"

"Give me a minute. Please. I'm not — I'm fine, I just need a minute."

Priya went. She left the door open a hand's width, which was Priya.

Naomi sat on the edge of the bed with her hands over her ears, which did nothing, which she had known would do nothing before she did it, and she did it anyway, because when a room is too loud you put your hands over your ears — that's the deal, that's what hands are for, that is the one thing everybody knows.

She pushed at it. That was the only way she could describe it afterward, and she hated the description, because it made it sound deliberate and considered and it was neither. It was the thing you do with your shoulder against a door. She shoved.

And something shoved back. No — not back. Something listened.

The phone in her hand unlocked. She hadn't touched it. The screen came up bright with her four unread messages and her sisters' group chat and the wallpaper of the three of them at the Trafford Centre in 2023.

Two rooms away, Priya's Bluetooth speaker played one note. A single clean middle-of-the-keyboard note, like a doorbell in a nice building, and then nothing.

Naomi dropped the phone.

It hit the rug and lay there face up and she looked at it the way you look at a wasp that has landed on your leg.

"No," she said. "No, no, no, no, no."

Her heart was going. Her hands had gone cold and stupid. She knew what this was, she'd had them since she was fifteen, she knew the shape of one arriving and she knew the four things you were meant to do and she could not remember any of the four things, because every time she tried to get hold of one, the fridge downstairs said something.

She got up. She got to the bathroom. She got in the shower, and turned it up hot, because hot water was a thing that worked, hot water had always been a thing that worked.

The extractor fan had a chip in it.

It was a fan. It was a fan in the ceiling of a bathroom in a converted loft in the Bronx and it had some cheap little board in it, and it was up there murmuring away to itself like a man reading the paper, and there was nowhere in this flat, in this borough, in this entire country, where she could go and not be in a room with something switched on.

Naomi laughed. One short flat bark of a laugh, the kind you do at a funeral, and it echoed off the tile.

Then she stopped laughing and stood under the water with her forehead against the wall for a long time.

## DOMINIC REYES

Nothing felt different, which Dominic thought about later.

He got up at five. He knocked the headboard off the frame reaching for the alarm — the whole board came away from the two bolts on the left side and hung there crooked, and he looked at it for a second and thought those bolts were shot, because those bolts had been shot for a year. He set it back. He made coffee. He drove to Mott Haven.

Twelve stories, steel and glass, mid-frame, three months behind on a nine-month build. Cold morning. The kind of March where the wind comes down the avenue like it's got somewhere to be.

He did his walk-through. He talked to Hector about the rebar delivery, which was late, which it had been all week.

"They say two," Hector said.

"They said two yesterday."

"They said two yesterday," Hector agreed.

"Call them at eleven. Don't be nice."

"I'm never nice."

"You're very nice. That's the problem."

Third floor, the guys were fighting a beam. It had come in a quarter inch out and Ruiz and Kowalczyk were working a shim under the near end with a sledge and getting nowhere, and it was the kind of thing that eats forty minutes and then somebody's hand.

Dominic came over. "Hold up."

He put one hand on the beam to steady it while Ruiz got the shim seated.

The beam came off the deck.

Six inches. Straight up. Level. Hanging there off three fingers of his right hand like a coat on a hook.

Ruiz stopped with the shim in his hand. Kowalczyk was underneath and didn't see it and then did see it, because the light changed under there.

Dominic put it down. It went down the way it had come up, no drop, no bang, just down, and settled.

"That was a bad shim, Hector," Dominic said. "Get me a real one."

Nobody had called Hector. Hector was one floor up. Hector's voice came down anyway. "Yeah, boss."

Ruiz was still looking at him. Dominic looked back at him with his ordinary face, the one he used for everything, and after a second Ruiz said, "Bad shim," and turned around and went to get one.

Dominic walked to the site trailer. He shut the door. He sat down on the folding chair with his hands on his knees.

His hands were shaking.

Not from fear. He knew fear and this was not fear. It was the other thing — the thing his hands used to do in the back of the truck before a gate hit, the shake of a body with somewhere to put all this and nowhere yet to put it. That was a two-thousand-pound beam. He had lifted a two-thousand-pound beam with three fingers of one hand and it had felt like lifting a broom.

He sat there for a while. He thought about the headboard. He thought about the bolts, which had been shot for a year, which was true, and which had nothing to do with anything.

He got up at eleven-forty and told Hector he was taking his lunch on the roof.

Twelve floors. Wind up there with nothing to break it. The Bronx laid out grey and brown and going on forever, the Deegan, the water, Manhattan standing off to the south like it was waiting for someone.

He did not decide to fly.

He walked to the edge, closer than he'd walk, closer than he'd let anybody on his crew walk, and stood on the lip where the parapet was out for the facade work, and he wanted — this was the honest version of it, the one he'd give himself later — to know what he weighed now.

He put one foot over.

It did not fall.

He stood there with one foot on gravel and one foot on nothing at all, twelve stories up over 138th Street, and then he put the other foot out.

Both feet on nothing. Not falling.

The first thing he felt was joy. Not a thought, not a realization — joy, straight through, physical, absurd, arriving in his chest and his hands and the backs of his knees all at once. The way it feels the first time you swim, when the water takes your weight and the whole of you understands before any of you does.

He took a step forward. He was out over open air with a hundred and thirty feet of nothing under him and the wind coming up the side of the building, and he was still not falling.

Dominic laughed.

It was not a big laugh. His crew had heard him laugh maybe six times in five years and every one of them could tell you when. It was two syllables and it went nowhere and there was nobody on the roof to hear it.

## MARCUS HALE

Two-forty in the morning in a kitchen in Fort Greene, and Marcus has not been to bed. The whiteboard has thirty-one bullet points on it now and one crossed out, and he has started a second column he does not have a name for yet, and at some point around midnight he ran out of board and started using the fridge. He has drunk four cups of coffee and eaten a sleeve of crackers standing up. At the very bottom, in the corner, in handwriting even worse than the rest, he has written: R. — try again Monday. Better plan. He looks at that one for a while. Then he goes back to the interference problem, because the interference problem he can do something about tonight.

## DOMINIC

He did not go far. He went up.

Straight up, and the roof dropped away underneath him like something falling, and the site was a rectangle and then a shape and then a small pale mark among a thousand other marks, and the Bronx went from a place he worked to a pattern — the long north-south streets, the green of St. Mary's, the rail cut, the river going brown and silver in two directions.

It did not feel like speed. That was the part he could not get over. He worked out later, from the time, that he must have been doing something near three hundred, and it felt like walking. It felt like the easiest thing his body had ever done. There was no strain anywhere in him to point to. There was just up, and him going up, and the city getting smaller in a way that made no sense with how little he was doing about it.

He went into cloud.

Grey and then white and then wet on his face and his arms, and no horizon, no up or down except the one he was making, and a couple of seconds of the specific animal panic of not being able to see, which he rode out because he had been taught to ride it out by men who were very serious about it.

Then he came out the top.

The sun was up there.

He had seen the sun his whole life. He had seen it out of Humvees and off the top of scaffolding and coming up over the water at Orchard Beach when he was nine years old. He had never seen it like this — huge, and white, and close, sitting on a floor of cloud that went out to the edge of everything, all of it lit, all of it moving very slowly, no sound anywhere, nothing between him and it.

He hung there.

He thought, Camila would lose her mind.

He went higher.

It got cold fast. Not weather cold. A different animal — cold that came through his jacket like the jacket wasn't there, cold in his teeth and the wet of his eyes. And his breathing changed. Not failing. Working. Two breaths where he'd have taken one, and then three, and a thinness at the top of each one, and a faint bright edge coming into his vision at the corners.

He knew this. He'd done Bagram at five thousand feet and a course in a chamber at Fort Benning where they took a room full of guys up to twenty-five and made them do arithmetic while their fingers went blue, and every man in that room had thought he was fine right up until he wasn't.

Dominic stopped.

Not because he was scared. Because he was smart enough to stop.

He turned around and went down.

He came down slower than he went up, through the cloud again, out the bottom into the grey, and the Bronx came back — the rail cut, the green, the streets. A few hundred feet up over Melrose there was a woman in a long dark coat walking east on 156th toward the subway with her hands in her pockets and her head down, and Dominic did not see her, and she did not look up, and both of them went on with their afternoons.

He landed on the roof he'd left. Gravel, wind, his lunch bag still sitting on the housing where he'd put it.

He sat down on the ledge and let his feet hang over a hundred and thirty feet of air, and he grinned at the Deegan for a while like an idiot.

Then he stopped grinning.

Because the thing about a hundred and thirty feet of air is that a month ago it would have killed him, and today it wouldn't, and he did not know which of those two facts was true tomorrow.

He thought about Elias.

Elias was nine. Elias was, right now, on a Wednesday afternoon at one-fifteen, either in Mrs. Baptiste's fourth-grade classroom or, more likely, staring out of Mrs. Baptiste's window. Elias had Camila's exact face. Elias's father had been gone since before Elias could hold his own head up, and Camila had been nineteen — Dominic's cousin, not his sister, though the distinction had stopped mattering to anybody except the paperwork — and Dominic had been in a Humvee outside Kandahar when the call came through and had to sit in that vehicle for four more hours because you do not get to leave.

He had not been there. He had not been able to do anything about it. That was a settled thing in him, sitting where it sat, and he did not go poking at it.

But Elias had a grandmother who was sixty-eight and had already buried a daughter, and he had Dominic, who picked him up on Thursdays and did not call himself an uncle out loud because he had never needed the word.

If he went up there again and got it wrong — got the cold wrong, got the air wrong, hit something, found out the hard way about whatever the actual edge of this was — then Sofía buried a son, and Camila's mother buried the last person Elias had who showed up, and Elias lost the second one.

And if he told anybody, if this got past this roof, then he was not a foreman anymore. He was a thing. And a thing does not get to pick up a nine-year-old from school on Thursdays.

Dominic sat on the ledge with the wind coming up off the avenue and did not have a plan yet. He had the outline of where a plan would need to go.

He went back downstairs at ten past two and worked the rest of the shift.

Hector clocked it, of course. Hector had worked next to him for five years. Around four he came and stood beside Dominic at the hoist for a minute and said, "You good?"

"Rebar came at three."

"I know when the rebar came. You good?"

"Yeah."

Hector nodded and went back to work, and did not ask again, because Hector was a good second.

## NAOMI

By evening Naomi had got the door shut and the curtain across and had learned exactly one thing, and it had taken her eight hours to learn it.

She could pick.

Not turn it off. There was no off. She'd spent the first four hours looking for off, and off did not exist, and somewhere around two in the afternoon she'd stopped looking for it and started doing the other thing instead, which was picking one voice out of the crowd and holding on to it.

The M15's fare box, which she'd chosen at random and then got weirdly fond of. It went along its route talking to itself all the way down Second Avenue in a little repeating pattern, every tap a small bright tick, and if she held on to it she could ride it the whole way down like a hand on a rail.

The traffic light on Willis, which cycled the same way every time except once, at 4:52, when something upstream made it hold red for an extra eleven seconds and she felt the hold like a held breath.

A smart telly three floors down that had been playing a cooking programme since noon. She'd listened to forty minutes of a man making a braise before she'd realized what she was doing and made herself stop, because it was somebody's telly and that was somebody's afternoon and she was in it.

That one had bothered her more than she expected.

And then there was the other one.

It had come on yesterday morning. She was sure of that now — she'd been able to feel back through it, the way you can feel back along a wire, and the start of it was yesterday at about quarter past eleven, and it had not gone off since.

It was not a machine.

She knew every machine in a two-mile radius by now, intimately, unwillingly. Machines had a shape. They repeated. Even the clever ones repeated; that was what made them machines. This did not repeat. It went quiet for a bit and then it went hard, a long fast run of something that felt like a hand moving over a surface, and then quiet again, and then hard again, and the pattern of the runs was not a pattern, it was — she kept coming back to the same stupid word and she kept refusing it, and around six she gave up and let herself have it.

It was thinking.

Something in Brooklyn had been thinking, without stopping, for thirty-one hours.

She had a page of her sketchbook covered in a rough map she'd built out of nothing but which way it felt strongest from, taken from the two windows in the flat and from the fire escape, which was as far as she'd got. Two bearings. Bad triangulation, a nineteen-year-old with no equipment and half a headache, but it was enough to put it in Brooklyn, and enough to put it near the big park, and by about eight she had it down to something like Fort Greene.

Not further. She could not go further, because going further meant going outside.

She had tried that at eleven that morning. She had got eleven steps down Bruckner Boulevard before the whole thing came in on her at once — every car, every phone in every pocket, the entire signal-boiling weight of the South Bronx arriving in one go — and she had turned around and come back up the stairs with her jaw locked, and been sick, and lain on the bathroom floor for twenty minutes with her cheek on the tile.

Manhattan was going to be worse. Brooklyn was a bridge away.

She wrote in the sketchbook, under the map: Fort Greene. Whatever is thinking. Find it. She underlined it twice.

Then she drew a small careful spiral in the margin, round and round, tightening, without noticing she was doing it.

The letter was on the desk under the laptop where she'd put it a week ago. Cambridge's academic leave sat six weeks out. Six weeks, and then either a return, or a conversation, or another lie stacked on the pile of lies. Her mum was expecting a call Sunday, same as every Sunday. Her mum thought she was in a college room in Cambridge. Her mum asked about her supervisor by name — she'd invented a supervisor, she'd given the supervisor a name, she'd given him a beard and an opinion about semicolons — and every Sunday Naomi sat on her bed in a loft in the Bronx and told her mother, who loved her more than anyone alive did, a series of small warm things that were not true.

She was very good at it now. That was the bit that sat wrong.

Priya knocked at half nine and came in with tea and didn't say anything about the curtain or the door or the fact that Naomi had not left the room in eleven hours. She put the mug on the desk, moved the sketchbook two inches so the mug had somewhere to go, and said, "There's chips if you want them. Callum's ones, but he owes you."

"Ta."

"Right," Priya said, and went, and pulled the door to behind her.

Naomi sat and held the mug with both hands and did not drink it and thought, for the first time all day, about the chippy on Wilmslow Road that did a proper battered sausage, and how she had not eaten one in fourteen months, and her eyes went hot and she put that away.

She got into bed at eleven with headphones on.

The headphones did nothing. She knew the headphones did nothing. She wore them because a person who is trying to sleep puts headphones on, and she was going to keep doing the ordinary things until the ordinary things worked again.

Out past the river, the thing in Fort Greene was going hard, one of its long fast runs, going and going.

"Who are you?" Naomi whispered.

It did not answer. Of course it did not answer. It was thirty-odd hours and eight miles away and it was not a machine and it did not know she existed.

But it slowed. For about a second and a half it went slow, and then it stopped altogether, and then it started again, differently.

Naomi lay in the dark with her eyes open and did not sleep for a long time.

## DOMINIC

The cemetery was off Jerome and he had a key to the gate because the guy who ran the grounds was Ruiz's uncle.

Dominic went once a month. This was not the month. He came anyway because he did not know where else to be, and because sitting in his apartment had lasted about forty minutes.

He drove. The green Civic, the one that ran, with the passenger door off a different car and the interior smelling of the stuff he used on the seats. He drove because driving took an hour with the lights and flying would have taken four minutes, and he had already made one decision about that today without noticing he was making it.

He parked on the street. He walked in.

CAMILA REYES. Nineteen years. The stone was small and flat and he had picked it himself when he got back, in an office with carpet, from a laminated book.

He did not talk to her. He never had. He was not a man who talked to graves, and he had never worked out whether that was respect or a failure of some kind, and he had stopped needing to know.

He stood there.

He cleared the winter mess off the stone with the side of his boot — a slick of dead leaves, some grit, a plastic tag off somebody else's flowers that had blown across. He crouched and got the last of it with his hand. Then he stood up again and put his hands in his jacket.

Camila's mother was sixty-eight. She had done this once already, in a black coat she still had, and she'd been on her feet the entire day and had fed forty people afterward and had gone into the kitchen at eleven at night to wash up, and Dominic had come in and found her holding a plate under the running water and not moving.

Elias had Camila's face. Everybody said it and everybody was right and nobody ever said it in front of her mother.

The wind came through and moved the leaves around.

Okay, Dominic thought.

Here is what happens.

Nobody finds out. Not Hector. Not Ruiz. Not Sofía. Not Camila's mother. God, especially not either of them. Not until I know what this is, all of it, the whole shape of it — how high, how cold, how fast, how far, what breaks me. I find that out on my own, at night, out over water where there's nothing to hit and nobody to see.

I do not save anybody. Not yet. Maybe not ever. There is a version of this where I go be a hero and it lasts nine days and then Elias has a folded flag and a story, and that version does not happen. Somebody else can have that one.

I am a foreman. I've got thirty guys. I've got a nephew who needs picking up Thursdays.

I learn what I am. Then I decide.

He stood there another minute. He didn't say any of it out loud. He didn't say anything out loud.

Then he went back to the car, and it started on the second turn like it always did, and he drove home through the Bronx at forty miles an hour with the window cracked, the way a man drives when he has decided something and does not feel like being congratulated for it.

He did not fly. Not tonight.

* * *

CHAPTER THREE: THE BAD GIFT

## SELENE VOSS

The coffee took three minutes on low heat, no more, no less, and Selene Voss had never once tried to speed it up.

Fine grind, cold water, the copper cezve her mother had shipped her in a box padded with three of her father's old sweaters, back when her mother still believed the posting was temporary. Selene set it on the smallest burner at seven-oh-four and stood with her hip against the counter and watched the foam start to gather at the rim the way it always gathered, in the same slow ring, and did not check her phone, because you did not check your phone while the coffee was thinking about whether to rise.

The apartment was quiet in the particular way an apartment is quiet when exactly one person lives in it. Two rooms and a kitchen on Riverside, books to the ceiling in both rooms and along one wall of the kitchen as well, because there had not been anywhere else to put them. Radiator knocking somewhere down the hall, not hers. Someone upstairs already up, already moving a chair. Outside, six floors down, the ordinary traffic of West End Avenue going about its ordinary business, a bus sighing at a stop, a car alarm somewhere that no one was going to do anything about.

She passed her grandmother's photograph on the way to the cupboard, the way she passed it every morning. Baba Vera, black and white, 1978, in the kitchen in Gabrovo with a rooster under one arm and an expression that suggested the rooster had said something she did not care for. Selene did not stop. She had stopped, the first year. She did not stop anymore, which she had decided, privately, counted as healing, though she was aware that a woman with a doctorate in medieval religious linguistics was not well placed to be diagnosing herself.

She reached for a cup.

Her grandmother was sitting at the table.

Selene's hand stayed on the cupboard door.

Not the photograph. Not a shape in the corner of her eye that resolved into a coat on a hook, the way grief did that sometimes, cruelly, in the first year — she knew that trick and this was not it. This was baba Vera at the small kitchen table, in the second chair, in color, in the actual grey morning light coming through the actual window, hands folded on the linen runner Selene had carried back from Sofia rolled in a suitcase after the funeral. She was wearing the cardigan. The green one. The one she had been wearing in the coffin, which Selene had chosen, standing in a funeral home in Sofia at twenty-nine years old trying to remember which cardigan her grandmother had actually liked and which one she had simply owned.

Fear was not the first thing.

The first thing was the flatness of the impossible. A fact refusing to fit anywhere. Her grandmother had been dead for three years. She lived alone. The second chair was empty. All three of these were true, and the fourth thing in the room did not care that they were true.

Baba Vera looked at her and said something.

It was Bulgarian. Selene's Bulgarian was her first language and her best language and she understood every word her grandmother had ever said to her in it, across twenty-nine years, without effort. She did not understand this. Not because the words were unfamiliar — she knew every word individually — but because the sentence itself was not one she had ever heard, not from baba Vera, not from anyone, not in any of the several hundred devotional and folkloric texts she had spent her career reading.

Baba Vera said it again. Patiently. The way she used to say a knot was wrong before she showed you, with her hands, how to make it right.

The kettle was still on the stove behind her, not yet at temperature. The radiator down the hall knocked twice. Someone upstairs pushed a chair another few inches across a floor. The ordinary machinery of a Thursday morning went on being ordinary, and baba Vera sat in the second chair and said the sentence a third time, and then did not.

The chair was empty.

The linen runner had a wrinkle in it, a small fold near the near edge, that Selene did not remember being there. She looked at it for what felt like a long time. Then she decided — carefully, the way she decided most things — that the wrinkle had always been there and she had simply never had reason to look at that corner of the runner before.

She turned off the kettle, which had come to the boil without her noticing.

She sat down in her own chair. She did not touch the second one.

She took the small notebook she kept on the counter — the one for manuscript notes, ruled, unglamorous — and wrote the sentence down, in Cyrillic, in the careful even hand baba Vera had taught her when she was six years old, sitting at a different table, in a different country, with a different grandmother who was, at that time, still very much alive.

She read it back to herself.

It was a proverb. Or it read like one — the balanced rhythm of a saying that had been polished by a hundred years of being said. She had never encountered it before, in any text, in any dialect, in nine years of professional reading. Translated, roughly, it came to: the two rivers knew each other before they met.

She looked at the sentence for a while.

Then she looked at the empty chair, once, and got up, and got dressed, and went to work — because whatever else this was, it was seven forty in the morning on a Thursday, and the archive opened at nine, and a woman does not fail to go to work because her dead grandmother sat at her table and told her something about rivers.

## MARCUS

Related rates, second problem of the week — water draining from a conical tank this time, not the ladder, and Marcus Hale had slept maybe four hours and did not look like it, because he was having a very good morning. He'd been up past two on the kitchen whiteboard and come in on two cups of coffee and a low steady hum that was not exhaustion. He would worry about it tomorrow.

"The tank drains at a constant rate," he said, chalk in hand. "Which means dV/dt is constant. Which means — somebody help me — what happens to dh/dt as the water level drops?"

Devon Alcaraz had a theory, and the theory was wrong, and it was wrong in an interesting way, and Marcus let him run with it for a minute because Devon running with a wrong idea in the right direction was one of the genuine pleasures of teaching this particular kid.

Third row, second seat, Renata Osei had her notebook open.

That was new. Monday it had been closed. Tuesday it had been open to a blank page. Today there was writing on it, and Marcus clocked this the way you clock weather changing, with the part of his attention that was always, quietly, on her, and he did not say anything about it, and he did not look at her twice in a row, because a kid who is coming back to herself does not need an audience for it.

He finished setting up the cone. Radius, height, the water level falling. "What has to be true," he said, "for the level to fall at a constant rate, if the tank isn't a cylinder?"

Renata's hand went up.

Marcus felt his glasses go soft at the bottom edge before he'd finished registering that her hand was in the air, and had to take them off and clean them on his shirt while twenty other kids watched him do it, which had never once in fourteen years stopped being slightly embarrassing.

"Renata."

"It can't," she said. "Not exactly — the radius changes with height in a cone, so dh/dt has to change too, unless you're solving for the instant, not the interval." A pause. "Unless the cone's truncated. Then there's a piecewise you'd have to write, because the radius-to-height relationship's different above and below the cut."

Nobody had asked about a truncated cone. It was not on the worksheet. It was not, strictly, the question. It was the kind of observation that came from a mind that had already finished the assigned problem and gone looking for the more interesting one sitting next to it, which was, more or less, the exact description of why Marcus Hale had become a math teacher.

"That's the good version of the answer," he said, evenly, giving it no more weight than it needed and no less. "Thank you."

Renata nodded, once, and looked back down at her notebook.

He went on with the lesson because a lesson was what she needed from him right now, not a reaction, not a moment made out of it in front of the room. But he was smiling at the board while he wrote the next line, and he could not get his face to stop doing it, and he decided he didn't especially want it to.

The bell went. Chairs, bags, the general scramble. Renata packed up at her normal pace, not fast, not slow.

"Renata," Marcus said, "if you've got a minute after school—"

She was already at the door. Backpack on, out with the crowd, gone.

She hadn't run. That was the thing he stood there working out for the whole of the passing period, chalk still in his hand, the room emptying and refilling around him. Monday she had avoided him — small, held, careful not to be caught alone with a question. This was different. This was just done. She had simply finished being in the conversation before he had, the way you finish a phone call, and left.

He didn't know what that meant. He was fairly sure it meant something.

## SELENE

Nine-fourteen, the Slavic archive at Columbia, and Selene noticed the SUV on her way in because it was the kind of car that did not belong on that block — black, clean, parked with its engine off half a way down from the entrance, in a neighborhood that ran mostly to station wagons and double-parked Ubers. She noticed it the way you notice most things a city produces without explanation, which is to say briefly, and went inside.

Her office was one window and three walls of books and, at the center of the desk, on its foam cradle, the manuscript.

Fourteenth-century. Bulgarian. Liturgical, water-damaged along the lower third, marginalia in three different hands from three different centuries of use. She had been working on it for three years. Her advisor had been kind about the pace, which was its own quiet embarrassment — three years on one manuscript was not, technically, a scandal in this field, but she knew what the timeline was supposed to look like and knew she had fallen behind it somewhere around the second year, right around the time baba Vera's absence had stopped being a raw thing and started being simply a fact of the landscape. She knew the manuscript the way a farmer knows a field — every contour of it, every low patch that flooded first, the places where the ground gave a little underfoot.

She opened to folio 43 recto, which she had photographed forty-one times and transcribed twice and translated once, and which she could, if pressed, have recited from memory with reasonable accuracy.

The outer marginal note, in the second hand, faded, abbreviated — a prayer for the safe delivery of children, the kind of note a worried mother or a worried priest left in the margin of a book that was going to outlive them both, one more small human hope pressed into the white space of something already sacred.

Except the last line was wrong.

— и когато две реки се познаваха преди да се срещнат —

And when two rivers knew each other before they met.

Selene sat very still.

She pulled up her photographs — all forty-one of them, on the archive laptop, in a folder she had organized by date because that was the kind of scholar she was. In every one of them, the last line of the marginal note read what it had always read: в името на пресветата Богородица. In the name of the most holy Mother of God. A standard closing formula. She had read that closing formula in this exact hand a thousand times across a dozen manuscripts.

The manuscript in front of her, right now, in the actual light of the actual room, did not say that.

She sat with both facts for a while, side by side, refusing to resolve into each other.

Either the manuscript had changed, or she had. Both were, on their face, impossible. It was the impossibility itself, oddly, that kept her steady — a thing that could not be true did not require an immediate emotional response, only an investigation. She was, before anything else, a person who investigated things.

She rephotographed the folio, three cameras, three angles, the archive's good light this time instead of her desk lamp. Then she took the laptop down the hall to Mihaela, who had run this reading room for six years and knew Selene's handwriting better than Selene's own mother did.

"Do you see anything unusual about this line," Selene said, no preamble, and turned the screen.

Mihaela looked. "It says what it always says." She glanced up. "Are you sleeping enough?"

On the screen, the last line read в името на пресветата Богородица.

Selene looked at it for a long moment. "Not especially," she said, which was true, and let it stand as the whole of her answer.

She went back to her office. She opened the manuscript again.

— и когато две реки се познаваха преди да се срещнат —

She was not panicking. That was, she noted with something close to dry amusement, the single most useful fact about herself this morning. A woman whose adult life had been spent reading texts that changed their meaning under three centuries of marginal argument was not the worst-equipped person in the world to face a text that had changed overnight on its own.

She wrote down the new line. She wrote down the old line, from memory and from the photograph. She wrote down what baba Vera had said at the table that morning.

All three were the same sentence, in slightly different grammatical dress.

I am either losing my mind, she thought, or I am reading the future in my own manuscript.

Both of those, she thought, are worse than the other one.

She closed the manuscript. She returned it to its cradle, locked the office, and left.

On her way out, the SUV was still there. Different driver — a woman this time, where it had been a man that morning, both of them doing the specific nothing that people do when they are being paid to sit somewhere. Selene noticed this and let it sit, unresolved, alongside everything else the day had failed to resolve, and walked to the subway, because if she was losing her mind she intended to do it with a piece of banitsa in front of her first.

## MARCUS

Marcus stayed at his desk until three-fifteen, grading, phone face down, not thinking about the pen.

The room emptied out slow the way it did on Thursdays, a few kids lingering to ask about the weekend's problem set, Devon coming back for a stapler and staying to argue about whether the truncated cone thing would be on the test, which it would not be, which Marcus told him three times, which did not stop him asking a fourth.

He was thinking about Renata, and he had been thinking about her since first period, and he had been doing it badly — the same four facts circling the same drain, no new angle presenting itself no matter how many times he turned them over.

He did the thing he did when thinking harder wasn't working. He stopped. He wrote call her mom on a Post-it and stuck it to the laptop where he'd see it in the morning, and packed up, and went home the way he always went home, on foot to the subway, through the last of the afternoon light.

On Vanderbilt, a block from the station, he tried the keys.

They were in his right jacket pocket. He put his hand in, found their shape through the lining, let go, kept walking, and thought — gently, the way you'd nudge a door that might or might not be locked — up.

The little one, the front-door key, lifted a quarter inch off the others. He couldn't see it. He could feel it the way you feel a note held on a piano after your hand's already left the key — a small live thing against his fingers that weren't touching it.

He grinned at the sidewalk and kept the key floating for half a block before he let it settle.

Then he tried the coin. Front jacket pocket, thick fabric, nothing behind it to press it against. He reached for it the same way and got nothing — the same flat, switchless nothing he'd gotten from the grade book on Tuesday.

He moved the coin to his front pants pocket, where it sat against his thigh, where he could feel its weight and its edge and the exact place it was.

It moved. A small slip, no more than that. But it moved.

He walked the rest of the way to the subway trying, without much success, not to look like a man who had just proven something to himself on a Brooklyn sidewalk.

On the train he took out his phone and typed, one-handed, holding the pole with the other: Attention confirmed. Fabric not the barrier. Need contact or proprioception — not sight. Test tomorrow: something I can't feel and can't see, but know is there.

He read it back once and put the phone away, satisfied, the way he was satisfied at the end of a good class — not finished, not close to finished, but moving in the right direction, with a next step already written down.

## SELENE

Two-forty, the bakery on 30th Avenue, and Selene knew the woman behind the counter, Radka, from a village two hours from the one Selene's own family came from, which in Queens counted as practically neighbors. She ordered banitsa and a small coffee and took the corner table, the one with the wobble she always meant to mention to Radka and never did.

She did not eat for a while. She looked at it. Baba Vera's had been better — sheep's cheese instead of feta, the phyllo folded the old way, in a pattern Selene had watched a thousand times and never once managed to reproduce with the same hands that could read a fourteenth-century hand at forty paces. She had tried, twice, in the kitchen on Riverside, and both times the phyllo had torn in the same place, and both times she had eaten the results anyway and told no one.

This was the part that arrived closer than the kitchen had. In the kitchen, at seven, she had been seeing her grandmother, which was a category of event a trained mind could hold at some distance and examine. Here, in a bakery in Astoria with a coffee going cold, she was simply missing her.

She ate a bite. It was a good banitsa. She had eaten it dozens of times, on dozens of ordinary Thursdays, and today was, technically, also an ordinary Thursday, and she let that fact do what small work it could.

She thought about the marginalia. She thought about the sentence at the table.

The two rivers knew each other before they met.

I don't know what the rivers are, she thought.

I don't want to know, she thought, and was aware, dryly, that this was probably not true, and that not wanting to know was itself a kind of knowing.

She finished, paid, and walked to the subway.

The platform at 30th Avenue is up on the el, open to the weather, and at that hour it was half full. Schoolkids let out early. A man with a hand truck stacked with boxes. Two women arguing in Greek about a third woman who wasn't there. Selene stood back by the stairs where she always stood and opened her paper.

A boy went past her. Fourteen, fifteen, a backpack hanging off one shoulder and earbuds in, walking the yellow strip at the platform edge the way boys do, heel to toe, arms out a little, showing nobody in particular that he could.

She saw him fall.

Not with her eyes. With her eyes he was still walking. But laid over him, the way a second exposure sits over the first on old film, she saw his backpack strap catch on the corner of the hand truck, and the boy turn with it, and his sneaker come off the edge into the gap, and the headlight of the Manhattan train, which had not yet come around the curve from Astoria Boulevard, coming around the curve from Astoria Boulevard.

She was already moving. She did not remember deciding to. She had the paper in one hand and the boy's backpack strap in the other, a fistful of nylon, and she pulled harder than she had ever pulled anything, and the two of them went backward together into the man with the hand truck, and the boxes went over, and somebody shouted.

The train came around the curve.

It came in loud and ordinary and stopped where trains stop. The doors opened. People got on, stepping around the boxes. The boy was sitting on the platform with his back against a pillar, one earbud out, staring at her.

"Lady, what the hell," he said.

"You were on the edge," Selene said. Her voice was perfectly level. Her hands were not.

"I'm always on the edge." He got up. He looked at her the way you look at a crazy person on a train, which was fair, and picked up his backpack. There was a long fresh scuff down the side of it from the corner of the hand truck. He looked at the scuff, and then at the hand truck, and something crossed his face that he didn't have a word for and didn't try to find one. He got on the train. He took the far door.

Selene helped the man stack his boxes. He thanked her in Greek. She did not get on that train. She sat down on the bench by the stairs with her paper folded on her knee and waited for the next one, and when it came she got on it.

On the N train she read — a paper on transubstantiation debates in the fifteenth century, the kind of thing she read on trains the way other people read the news — and did not look up when the train came down off the elevated tracks and went under the river, and did not look up pulling into Lexington, where a dozen people got off and a dozen different people got on and none of it registered as anything but the ordinary churn of a Thursday commute.

Between Lexington and Fifth, in the tunnel, in the middle of a sentence she had already read three times without absorbing it, she felt it.

Not a vision. Not baba Vera. Not the marginalia. Something smaller, and nearer, and entirely different in texture — as though her seat had moved half an inch beneath her without any of the corresponding sensation of moving.

She looked up.

The car was ordinary. A woman with a stroller, asleep on her feet the way only mothers of infants managed to be. A man against the window, actually asleep. A teenager on a phone. Nobody looking at her.

The feeling passed.

She looked back down at her paper and did not read the paragraph. She thought about the phrase instead. The two rivers.

She did not know that six miles south, in Brooklyn, a man named Marcus Hale was walking down Vanderbilt Avenue with a house key drifting a quarter inch inside his jacket pocket, delighted with himself, entirely unaware that anyone in the world had just felt him do it.

She changed for the 1 at Times Square. She went home.

## NAOMI

Six o'clock, a loft in the Bronx, and Naomi has not left the room since morning. There is a sandwich on the desk that Priya brought an hour ago and has not been touched. The map has more on it now — the same rough shape, Fort Greene circled twice in a pen that's gone through the paper — and tonight, for the first time, a second mark, out west, in Manhattan, fainter, harder to pin. Underneath it she has written: there are two of them. She writes: the second one is quieter. Older. Also thinking. She sits back and looks at both marks for a long time before she writes the last line, small, in the corner, like she isn't sure she wants it on the page: if there are two, there are more. She has not slept properly in two days. She has no idea yet what to do with any of this. She just knows, now, that it isn't one.

## SELENE

Selene came home a little after seven and did not turn on the overhead light. The desk lamp was enough. It threw a small circle over the desk and left the rest of the apartment in the blue of early evening, the books along the wall going dark and indistinct, the second chair at the kitchen table just visible through the doorway, empty, exactly where it always was.

She opened her laptop and wrote, in Bulgarian, in the file she kept for exactly this — not the manuscript notes, a different file, the one that was only ever for herself — everything from the day, in order. The kitchen. Baba Vera. The proverb, twice written out, once in her grandmother's cadence and once as it had appeared on the page. The marginalia. Mihaela's screen, unchanged. The bakery. The boy at 30th Avenue, and the train she had watched come around the curve before it came. The half-inch shift on the train that hadn't been a shift.

She read it back.

It read like the diary of a woman losing her mind. It also read, she thought, like the diary of a woman doing the one thing her entire education had trained her to do, which was read a text carefully and trust what was actually on the page over what she expected to find there.

If I am seeing the future, she wrote, this is apparently what it looks like. Not a vision in the cinematic sense. Small. Half-legible. Grief-inflected. A marginal note, not a proclamation.

She thought about that for a while.

I do not think I am losing my mind, she wrote, finally. I think I have been given a bad gift.

She underlined bad gift once, cleanly. Then, after a long while, she wrote one more line under it, smaller, as if she did not want it to be seen by the line above: Not at 30th Avenue.

She closed the laptop. She went to the shelf and took down baba Vera's photograph — the rooster, the unimpressed expression, Gabrovo in 1978 — and held it for a minute in both hands. She said one thing to it, quietly, in Bulgarian, that she did not write down anywhere, not even in the file that was only for herself.

Then she put the photograph back exactly where it had been, and went to bed.

She did not sleep for a long time. She lay in the dark and thought about two rivers. Four miles east, across two actual rivers, a nineteen-year-old she had never met lay awake in the Bronx looking at a map with two marks on it, thinking almost exactly the same thought in a different language entirely.

* * *

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