They met at breakfast the next morning like two people who had signed a treaty in the night and woken up unsure which of them was supposed to say the first word.

Sienna came down the back stairs at a quarter to seven with the notebook in her cardigan pocket and her braid still damp. She had slept, which she had not expected. The bolt had stayed shot all night. But she had lain for a long while first with her eyes on the green ceiling, hearing a man's voice say I poured it, and then, softer, I would like to see her do that again, and somewhere around three in the morning she had stopped trying to decide what any of it meant and let it simply be there, like the sound of the sea.

The kitchen was full of light. Tomas was breaking eggs into a bowl and humming under his breath. Mrs. Venn stood at the range with her back to the door, and at the long pine table, in his usual place behind the bowl of pears, sat Matteo with a cup of tea and the newspaper he never read.

He rose halfway when she came in. He sat again. He rose again, as though his body could not decide, and then gave up and stood there with one hand on the back of the chair and a faint dark flush climbing out of his collar.

"Good morning," he said.

"Good morning."

"You slept?"

"I did." She heard herself and nearly laughed. It was the same exchange, word for word, as the Sunday after the wedding, except that now both of them knew exactly what lay underneath it. "You didn't."

"Not very much." The corner of his mouth moved. "I'm told it's becoming a habit."

Mrs. Venn set down her spoon.

She did it with great deliberation. She wiped her hands on her apron and crossed the red tiles to the table, and Sienna watched her pick up the plate that had always been laid across from Matteo's, with the pears between them. She picked up the cup, the saucer with its pinch of gray salt, and the folded napkin. She carried them round the end of the table and set them down at the chair directly beside his. Then she pulled the chair out an inch and stood back with an expression of such bland, bottomless innocence that Tomas dropped an egg.

"The light's better on this side," said Mrs. Venn. "For reading."

Nobody answered her. Sienna sat. Her sleeve was four inches from his, and she felt every one of them.

She tested the tea. She tested the toast, the butter, the apricot jam, and the eggs Tomas brought in a covered dish with a look of hopeful dread. Matteo watched without comment, and when she had finished he reached across, without being asked, and slid the salt toward her cup. Their fingers did not touch. She was almost sure he arranged it.

"I have a proposal," he said, when the plates were cleared. He spoke quietly, though Mrs. Venn had discovered an urgent need to be in the pantry. "Since we are now, I think, in the same war. I'd like us to work in one room. Not in my study, and not in yours. Somewhere with a table and a door that locks."

"The library."

"I had thought so." He hesitated. "Marco has already brought down a blackboard. I hope that was not presumptuous."

"A blackboard."

"On an easel. It has chalk."

She looked at him. He looked at his tea. And Sienna, who had not planned to smile at all that morning, felt it happen anyway, slowly, helplessly, as a crack runs across ice.

"Show me," she said.

The library by daylight was a different room. The green lamp was off, and the tall window let in a flat white winter glare that made the leather spines glow like rows of old coins. In the middle of the floor, someone had cleared the long reading table and set it square to the window, with two chairs side by side on the same edge. At its head stood a slate blackboard on a wooden easel, its surface freshly washed, a tray of chalk resting under it. On the table lay a stack of ledgers bound in green cloth, a pile of manifests tied with string, the six typed pages of Marco's list, and two notebooks, one black and one blue, side by side with a careful, symmetrical gap between them.

Hers was the blue one. She did not remember putting it there. She suspected Mrs. Venn.

"Rules," said Sienna, and picked up a piece of chalk. It was something to do with her hands. "Before we begin."

"Please."

She wrote them on the board in her small hard capitals, the same way she wrote up a protocol. One. We say what we know and where we learned it, this life or the last. Two. Anything that could hurt the other goes on the table the day it is learned. Three. Nobody decides for the other what the other can bear. She stopped. She underlined the last line once, very straight, and put down the chalk.

Matteo had read them as she wrote. He did not smile now. He crossed the room, took the chalk from the tray, and under her three rules, in a slanting hand, he added a fourth. Four. When one of us is afraid, we say so.

She looked at it for a long time.

"That one's not about evidence," she said.

"No." He set the chalk down. "It's about how I'd like to be allowed to work."

They began with the oldest question. Who had been in the house, in the last life, in the months before the wedding, and who was there now?

It was a strange sort of work. Sienna had spent six years teaching herself to treat memory as a contaminated sample, and now she sat in a warm room with a man she had once died beside and tried to build a clean record from two minds that had both been written on before. They went slowly. They argued about the order of things. She remembered the cathedral, the guests, the maid with the hooks. He remembered the preparations, the seating plan, the long dull weeks of arrangements he had signed without reading. She wrote what she knew on the left of the board, and he wrote what he knew on the right, and where the two columns agreed, they drew a line.

"Dario," Matteo said, at last.

The chalk stopped.

"Last time," he said slowly, "Dario came to the house perhaps twice a month. Supper on Sundays when my mother's anniversary fell. Business on the quay, sometimes. He was always there at the large occasions, a christening or a funeral, and always gone before the dust settled. I thought of him as a pleasant piece of furniture. A very old chair that has never once let you down." He rubbed his jaw. "This year, he has been here nearly every week."

"Since when?"

"Since I put the ring on your finger, I think. Before that, perhaps once a fortnight. He brings papers. He brings advice." His eyes had gone far away. "He brought a pair of crystal glasses."

Sienna set down the chalk. She felt the old cold animal in her spine lift its head, and she made herself breathe, and hold, and let it out in six.

"That could mean anything," she said.

"Yes."

"I mean it. You changed things. I changed things. We married a year early in a registry office instead of a cathedral, with a contract. A man who has been a quiet friend of the house for thirty years might simply be worried. He might feel shut out. He might come more often because he is lonely, or because he thinks you've lost your head." She heard her own voice and was surprised by it. She was arguing for Dario Vance's innocence, she realized, in the voice she used on a colleague who was reaching for a result too fast. "You can't read a motive from a visiting schedule."

"I know." He turned to her. His face was very grave. "I wanted you to say that. I have not been able to say it to myself in a year. Every time I think about him I find I have already decided, and I do not trust a mind that has already decided."

She looked at him a moment longer. Then she picked the chalk up again and wrote, on the left of the board, in plain letters: D.V. presence increased. Cause unknown. Do not conclude.

Beside it, on the right, he wrote nothing. He only drew a small neat box around the words, the way she did in her notebook, and stood back.

By eleven the sun had come round the corner of the house and laid a long bar of gold across the table. They sat side by side, with the ledgers open between them. He had begun to show her how his house read its own money, and it was something she had not expected to enjoy.

"A manifest is a promise," Matteo said. He had pulled his chair close to hers, because the book was large and the print was small. "It says: this ship is carrying this much of this thing, consigned to this man, at this weight. The ledger is where the promise meets the money. If the two don't agree, someone is lying, or someone is careless. In my experience careless is rarer."

"Show me."

He turned the pages. She watched his hands, which were long and clean and steady when they were doing this, and she noticed, absurdly, that he turned each leaf by its upper corner with a faint, protective care, as though the paper might bruise. His finger came down on a line of figures. "Here. Carrow, the fourth of May. A hundred and twenty drums of industrial lubricant. They arrive. They are paid for. They are logged. All good." His finger moved. "Here, the same consignor, the same month. A hundred and twenty drums. The weights are different by eleven kilos each."

"Eleven kilos of what?"

"That is what I would like to know."

She bent over the page. It was an odd thing to find herself doing, leaning in over a freight ledger with a man's shoulder warm against hers, but the numbers caught her the way a puzzling trace on a screen caught her. She followed the columns with her eyes. She asked what the code beside each line meant, and he told her, and she asked why one entry carried a hazard class and the next did not, and he went quiet and checked, and said, very slowly, "It should."

"There's a pattern," she said. "Not in the weights. In the consignees." She pulled the notebook toward her and began to copy names. Three small lots, over eleven months, each too minor to notice. Each consigned to a holding firm called Vance Maritime Trust. "Is that..."

"Dario's family company. It's old. It has handled our small cargo for years."

"Chemical lots?"

"Cleaning solvents. Dock supplies. It's routine." He frowned. "It's routine."

"Then it's nothing." She wrote it down anyway. She wrote: Vance Maritime Trust, three small lots, class not declared. Routine. And then, under it, because she could not leave a thing alone: routine is where I would hide it.

She was still bent over the page when she asked, without looking up, "What does this figure mean? The one in the margin, with the little cross."

"Which?"

"Here."

He leaned in to see. He had to. She had put her finger on a faint pencil mark at the very edge of the column, and the only way to read it was to lower his head to hers. She felt it happen before she saw it: the warmth of his breath against her temple, the faint scrape of his sleeve across her wrist. The hair rose along her arm. His voice, when he spoke, was close and very low.

"It's a count mark. Marco makes them. It means he checked the drum himself."

"Oh."

She turned her head.

It was a small movement, no more than a quarter turn, the sort of thing a person does to look at the person speaking. She did not intend it. She told herself afterwards, with some force, that she had not intended it. But the library had gone silent. The gold bar of sunlight lay across the table, and the dust turned in it, slow as snow. And when she looked up, his face was a hand's breadth from her own.

He was not looking at the ledger.

She saw his eyes first, very dark and very steady, with a little gray at the rim of the iris that she had never noticed. They moved over her face with the careful tenderness of a man reading a page he has read many times and still finds new. They rested on her mouth.

They stayed there.

Her heart had stopped keeping time. She could hear it, loud and uneven, in the silence of the room, and she could see, at the base of his throat, the quick hard answering beat of his own. Neither of them breathed. A quarter inch of warm air lay between them, and it seemed to be the only thing in the world. She felt his hand, lying on the table beside hers, shift very slightly, as though it had begun to reach, and stop.

His eyes closed.

It was a slow, helpless movement, the lids falling like a man giving up an argument he has been losing for a year. His head tilted by a degree. She felt the whole length of her body lean, without permission, a fraction toward him. She thought: this is the moment. She thought: I do not know what I will do. She thought, with dizzy, utter clarity: I want him to.

A telephone buzzed.

It was a sharp, flat, insistent sound, a vibration against wood, and it came from the corridor outside the library door. Once. Twice. A third time, and then a low voice, rumbling and apologetic, saying, "Yes. Yes, I'm here. No, don't touch it. I'll be there directly."

Matteo opened his eyes.

He did not move at once. For one more heartbeat he stayed exactly where he was, a breath from her mouth, with an expression on his face that she knew she would remember for the rest of her life, whichever life it was. It was not embarrassment. It was not regret. It was the look of a man who has stood at the edge of something enormous and has been called back, and who is paying for the retreat with every nerve he owns.

Then he sat back. He did it very slowly, one inch and then another, as though the air itself were holding on to him. He placed both his hands flat on the table. He looked down at them. They were trembling.

"Forgive me," he said. His voice was rough.

"There's nothing to forgive."

"There is, a little." He drew a long breath. "I said I would do better."

A knock sounded on the door, two knuckles, deferential. Marco's voice said, "Mr. Bellandi. I'm sorry, sir. It can't wait."

"Come in."

Marco came in. He took in the room, the ledgers, the blackboard, the two chairs drawn so close that their arms touched, and his broad calm face did not flicker by a hair. It was the face of a man who had spent years training himself to see everything and mention nothing. "The man at Pier Four," he said. "Gavin. He's been watching Warehouse Seven since midnight, as you asked. Three men went in an hour ago with a van. No manifest. No foreman. They've taken the lights off."

Sienna saw Matteo's shoulders change. It was the same change she had seen in the long room above the quay, a quiet going-out of the whole man, like a lamp being turned down. His hand went to the signet ring. He turned it once.

Then his eyes came to her.

She understood before he said a word. She had spent a week learning the grammar of that face, and she could read it now almost as well as a lab report. He wanted to go. He wanted to go at once. And he was looking at her with a plain, unguarded, helpless request, because he had written four rules on a blackboard an hour ago and the third one had her handwriting on it.

"I'd like to watch them tonight," he said. "Only watch. Marco will keep a man close, and I'll go down at first light, when they've gone and I can see what they took." He paused. "I'd like you not to come to the pier tonight, Sienna."

She opened her mouth.

"Not tonight," Matteo said, very gently. "Please."

It was the *please* that stopped her. He had given orders to a roomful of grown men in that same voice, and none of them had ever heard it. It was not the voice of a man who commanded. It was the voice of a man who had once watched her die, and was asking for one night.

"All right," she said.

He closed his eyes for a second. It was only a flicker of relief, quickly hidden. "Thank you."

"But I'll be here when you come back. And you tell me everything."

"Everything," said Matteo.

He stood. He took his jacket from the back of the chair and shrugged into it, and for a moment, at the threshold, with Marco waiting in the corridor, he stood and looked at her. She was still sitting at the table with her hand flat on the ledger. The blackboard stood beside her with its four rules, and its two columns, and its small neat box.

He did not say what he was thinking. He only inclined his head, once, and went out, and the door closed softly behind him.

Sienna sat still in the empty library with the gold bar of sunlight sliding slowly across the table. She heard the front doors, and the car on the gravel, and then nothing. A clock ticked in the hall. Somewhere in the kitchen Mrs. Venn dropped a lid.

She was angry with herself. That was the first thing, and she examined it as she examined everything. She was angry because she was not relieved. She was angry because every sensible part of her had spent six weeks building a case against this man, sixty-five points of caution on a clean white page, and a single quarter turn of her head had undone it. And she was angry, most of all, because the thing she felt now, sitting alone in a library with her heart still going like a hammer and her mouth still faintly tingling at the memory of a breath that had not quite touched it, was not relief or fear or even doubt.

It was loss.

She had wanted him to. That was the plain, unwelcome fact. She had wanted it so much that when the telephone rang, a small, stupid, shameful part of her had thought: no.

She took out the blue notebook. She opened it to a clean page, and wrote, under the date, in a hand that was far from steady: Library. 11:40. Nearly.

She looked at it. It was exactly the sort of line she would never have let herself put in a lab book. It was unscientific. It was imprecise. It was, in every sense that mattered, a contaminated entry.

She drew a single hard line through it and wrote, underneath, in neat capitals: Vance Maritime Trust. Three lots. Class not declared.

But it was the other line she read all afternoon, through the black bars of the strike, a faint blue ghost in the paper, as she carried the ledger up to the green room and sat with it at the window and pretended to work.