Sienna woke to sunlight on her face and the strange, disorienting sensation of having slept.

It took her a full minute to understand it. She lay on her back in the big bed in the east suite, under a coverlet the color of pale celery, and stared at a ceiling she had last seen from the floor. She waited for the old alarm to go off in her chest. It did not. The room was warm. Light came through a gap in the curtains in a long gold blade and lay across the green walls, and from somewhere far below came the faint, cheerful clatter of a kitchen waking up. Her pulse was slow and even. It was Sunday morning, the first of her marriage, and she was alive.

That was all he had asked of the night.

She lay still a little longer than she needed to, listening to the house. A house this size should have creaked and muttered, but it only breathed, a low hum of old stone and warm pipes. A door closed somewhere. A gull complained on the balcony rail. She turned her head and looked at the bolt, a thick bar of dark steel set into the frame, and it was exactly where she had left it, shot home, undisturbed. She had not woken once. Not at midnight, not at three, not at the hour when, in another life, a cold hand had gone slack in hers.

She did not know whether to be grateful or furious with herself. She settled on both.

By seven she was dressed, in gray trousers and a soft blue cardigan, her hair in a braid, her notebook in one pocket and a roll of test strips in the other. Marco had delivered her two suitcases and a box of lab supplies on Friday afternoon with the grave tact of a man delivering a bishop's luggage, and the wardrobe now held her whole life in a quarter of its space. She drew back the bolt, stood a moment with her palm against the brass, and listened for footsteps in the corridor. Nothing. She opened the door.

The east wing was empty and flooded with light. The old harbor maps glowed in their gilt frames along the wall. Far off, past the head of the stairs, the smell of coffee drifted up like a rumor, and she followed it.

She took the back stairs, because the front ones led to the marble hall and the marble hall had portraits in it. They came down in a narrow spiral to a stone passage that smelled of bread and woodsmoke and hot copper, and at the end of it stood a wide arched door, propped open with a flatiron. Beyond it lay a kitchen the size of a small church.

She stopped on the threshold.

It was a magnificent room, long and high and whitewashed, with a floor of worn red tiles and a great black range along one wall like a sleeping animal. Copper pans hung from a rack in descending sizes. A scrubbed pine table ran down the middle, long enough for twenty, with a bowl of pears at one end and a bread board at the other. Morning light poured in through three tall windows and lit up the steam rising from a row of pots. A young man in a white apron was rolling dough at the far counter. A stout woman in a gray uniform, whom Sienna recognized from the night of the dinner, stood at the range with a wooden spoon in her fist, and she turned as the door sighed open.

Everyone in the room stopped moving at once.

"Miss Hale," said the woman. She set down the spoon and wiped her hands on her apron, and her broad, weathered face rearranged itself into an expression of careful welcome. "Good morning. I'm Mrs. Venn. I keep the house. This is Tomas, who cooks, and doesn't bite."

The young man ducked his head and went red to the ears.

"Good morning," Sienna said. "I'm sorry to come in without warning. I was told, in the contract, that I might..."

"You may do anything you please in this kitchen, Miss Hale," said Mrs. Venn. "Mr. Bellandi gave the order himself, and he wrote it down, which he never does. Pantry, cellar, ice room, the lot. We're to cooperate in all respects." The corner of her mouth twitched. "I'll confess I've been looking forward to it. Forty years in service, and no one's ever once asked to see inside my flour bin."

It was so unexpected, and so plainly kind, that Sienna felt something in her chest loosen a notch. "I'll try not to be a nuisance."

"Nonsense. I'd sooner feed a nuisance than a ghost." Mrs. Venn nodded toward the long table. "Sit. He's been up since four, and he's no better company than a wet dog. Maybe you'll do something with him."

Sienna turned.

He was sitting at the far end of the scrubbed table, half hidden behind a pillar and a bowl of pears, and she had walked straight past him without seeing. A newspaper lay folded beside his elbow. A cup of tea steamed in front of him, forgotten. He wore a white shirt with the sleeves pushed to the elbow and the collar open at the throat, and no waistcoat, no jacket, no signet ring, which sat instead on the table beside his saucer as though he had taken it off to think. His hair had not been combed. It stood up at the crown in a way that made him look, absurdly, about nineteen.

He had been watching her for some time. She could tell by the quality of his stillness, the careful, courteous stillness of a man who has learned that sudden movement alarms people. When her eyes met his, he rose halfway out of the chair, a reflex of old manners, and sat down again with something close to embarrassment.

"Good morning," Matteo said.

"Good morning."

"You slept."

It was not quite a question. It was said very low, and there was something at the bottom of it she could not look at directly, like the sun. She came down the length of the kitchen between the copper pans and the steaming pots, and stopped at the other side of the table, with the pears between them.

"I did," she said. "How did you know?"

"I didn't." He turned the cup a quarter turn on its saucer. "I hoped. Mrs. Venn sent a girl up at six with a tray, and the girl came back and said no one answered. I told her to leave it outside the door." A pause. "I stood in the corridor for about a minute, afterwards. I did not knock."

"You stood in the corridor."

"I wanted to hear whether the bolt was drawn." His voice did not change. "It wasn't. Then I went downstairs and drank tea."

She should have found it unsettling. A man standing outside a locked door at dawn, listening for a lock, was a man a sensible woman would put in a column of her notebook and underline. Instead she found herself looking at his unbrushed hair and the ring set down beside his saucer, and thinking, with a clinical detachment that did not quite reach her pulse: he did not sleep at all.

"Mrs. Venn says you've been up since four."

"Mrs. Venn exaggerates." He picked up the newspaper and put it down again. "It was a quarter to four."

There was the smallest crack of a smile at the corner of his mouth. Sienna looked away before it could do her any harm, drew out the roll of strips, and said briskly, "May I?"

"Please."

She began with his tea. She did not ask. She tore off a square, dipped it into the cup he had been holding for an hour, and watched it stay a pale and innocent yellow. He lifted his hands from the table, palms out, and let her do it, as one lets a doctor take a pulse. She tested the pot. She tested the milk jug, and the sugar bowl, and the little dish of butter, and the loaf on the board. Mrs. Venn came and stood by with her arms folded and her chin lifted, with the air of a general watching a parade pass in review. Tomas had given up pretending to roll dough.

"Doesn't it insult you?" Sienna said at last, not looking up. She had not meant to ask. It came out of her all at once, with the slightly ragged edge of a question she had been carrying for days. "People in your position. Having your own house tested, in front of your own staff, as though you'd stir arsenic into the porridge."

"No."

"Why not?"

He was quiet for a moment. Out of the corner of her eye she saw him look at the strip in her fingers, small and pale and ordinary, the way another man might have looked at a rifle. His voice, when it came, was so gentle that Mrs. Venn glanced up sharply from her bread.

"Because you're alive when you do," he said.

The strip slipped from her fingers and fell onto the table.

It was such a simple sentence. It was a sentence you might say about a seat belt, or a lock on a door. But he did not say it like that. He said it as if he were reading it from the back of a very old letter, one he had carried so long that the creases had worn through, and she felt it land at the base of her throat and stay there.

She picked up the strip, folded it carefully, and put it in her pocket. When she looked up, he had turned his head toward the window and was studying the pears with great concentration.

"Sit," said Mrs. Venn briskly, into the silence. "The both of you, before the eggs go cold. Tomas, the plates."

There was a certain ceremony to it. Tomas brought eggs, soft-scrambled and golden, and a platter of thin crisp toast, and a dish of apricot jam. Sienna dipped a corner of the toast, a drop of the jam, a crumb of the egg, and ate her breakfast one tested bite at a time under the benevolent gaze of the whole kitchen. Matteo ate beside her, a little hurriedly, like a man who has remembered that eating is something other people do. Neither of them spoke. The silence was not uncomfortable. It was only very careful, the way a room is careful when a new thing has been set down in it and nobody is sure yet where the furniture goes.

The coffee came last.

Mrs. Venn set the cup in front of her, a plain white cup, black and fragrant and hot, and beside it, with a small, deliberate clink, a saucer. On the saucer lay a single pinch of coarse gray salt.

Sienna stared at it.

She did not move. She did not breathe. Around her the kitchen went on with its small noises, the tick of the range, the spit of a pan, a spoon against a bowl, and it all seemed to recede to a great distance, as if she were hearing it from underneath water.

It was a thing she did. It was only a very small thing. When she was seven years old, in the kitchen on Tern Street, her mother had taught her to put a grain or two of salt in a cup of black coffee to take the edge off the bitterness. It was an old sailor's trick, her mother said, from a grandfather who had worked the herring boats. After her mother died, Sienna had gone on doing it, privately, secretly, in the early mornings, in the basement lab, over the sink, at midnight with the Divergence Log open, always when no one was looking. She did it in the dark. She did it the way some people say a prayer. She had never told a living soul. Not Nell, not her father, not the three men she had once half-loved. It was not a secret, exactly. It was just a thing so small and so private that no one had ever thought to ask.

She looked up.

Matteo had gone very still. He was watching her over the rim of his own cup, and the unguarded look on his face had a kind of helpless, inward flinch to it, like a man who has just realized that the thing he did with such tenderness may land as something else entirely.

"Who told you," Sienna said. It came out almost without voice.

"No one."

"Matteo."

"I swear to you, no one told me." He set down the cup. His hand was not quite steady, and he pressed it flat to the table. "I'd like to say it was luck. It wasn't. I made inquiries about you, before the pier. A good deal of inquiry. Marco has a certain talent for it." A faint, bitter smile. "A technician on your floor mentioned that you take it with salt. She thought it was charming. I thought..." He stopped, and swallowed. "I thought you'd like to find it ready, and not have to ask for it."

It was a good answer. It was another good answer, plausible and warm and sealed on every side, and Sienna turned it over and over like a stone in her hand, testing the weight. It might even have been true. Nell had a loud, kind, indiscreet mouth. A technician on her floor might have said anything. The coffee, as it happened, was perfect, and the salt was exactly the right coarseness, and nothing in the world was less like the work of a man who meant her harm.

But she had spent six years learning to distrust anything that fit.

She picked up the pinch of salt between two fingers and dropped it into the coffee. She stirred it once. She drank, slowly, and the bitterness dissolved on her tongue into something round and warm, and her throat ached with the sudden, intolerable ordinariness of it. A cup of coffee. A saucer of salt.

"It's very good," she said. "Thank you."

He let out a breath. It was barely audible. "I'm glad."

Mrs. Venn, who had been standing with her arms folded and an expression of studied blankness, abruptly remembered a pot on the range and went to see to it. Tomas dropped a spoon. In the sudden clatter, Matteo reached for his ring, turned it between his fingers, and slid it back onto his hand. It was a small gesture. It looked like a man putting on armor.

She waited until the noise had settled.

"Matteo," she said, low, so that only he could hear. "Have we met before?"

The kitchen did not change. The sun still lay across the red tiles. The range still ticked. But the air at the end of the table seemed to thin, as if somebody had opened a door onto a great height, and the hand that had just put on the ring went very still on the cloth.

He looked at her for what felt like a long time. His eyes were dark and steady and very tired, and she saw something move behind them, a long way down, like a fish turning under ice. She saw him weigh it. She saw him weigh her. And she saw him choose, with a care so deliberate that it was almost painful to watch, exactly what he would say.

"Not before this year," Matteo said.

He did not look away. He did not smile. He said it as plainly as a man reading a verdict, and then he picked up his tea, and drank, and the moment closed over like water.

"I have to go to the quay," he said, in a different voice. "A ship from Carrow is due at nine, and Marco will fret if I'm not there to say good morning to it. I'll be back by six. If you need anything, Mrs. Venn will see to it, and the telephone in the library is hers to answer." He rose. His chair scraped on the tiles. "Please. Make the house yours. Open any door you like. There's nothing in it I wouldn't want you to see."

He paused, for a second, at her shoulder. She felt it more than saw it, a warmth at her back, a held breath. His hand lifted as if to rest on the back of her chair. It hung there, an inch from the wood.

Then he lowered it, and went out through the arch, and the sound of his step faded up the stone passage.

Sienna sat very still with the half-empty cup in front of her. After a while she took out her notebook and opened it flat on the scrubbed pine, and wrote the date, and under it, in a hand she had to force into steadiness: Breakfast. East kitchen. Coffee with salt, on a saucer, unasked.

She looked at that for a long moment. Then she wrote beneath it: Not before this year.

It was a perfectly true sentence. That was what troubled her. In a year she had never met him. In this year, it was a plain fact, they had not been introduced until the pier. It was a sentence you could say under oath, with your hand on a book. It was also the sentence of a man who had very carefully avoided the word life.

She underlined it twice, with the same small, vicious stroke she had used in the lab, and added a figure beside the name she had written the week before. She hesitated. The pen hovered. At last, slowly, she crossed out the number that stood there, and wrote a smaller one.

Sixty-five.

It was a very small adjustment. It made her feel absolutely terrible.

"Eat your toast, Miss Hale," said Mrs. Venn gently, from the range, without turning around. "It's tested. I watched you."

And Sienna, who had not smiled properly in three weeks, found that she was smiling into her coffee, and that she could not seem to stop.