Saturday did not come for three days, and in those three days Sienna learned how much a house can hold in its silences.

It held a great deal. It held Marco's report on Thursday morning, delivered in the library in his usual level voice, with his big hands folded over a gray folder: the poste restante in the next county had been emptied on the second of December by a man in a gray coat, who signed for the post with a flourish and left no address, and nobody at the counter had looked at his face. It held the blackboard, with the box marked Rusk and the box marked Tinplate and, between them, the long blank gap where a name would go. It held a green leather notebook in a safe, and a boat on a mantelpiece, and a cream envelope in a drawer that neither of them had mentioned again.

But mostly it held the two of them, coming and going in the long winter light, a yard apart and then half a yard, and then, on Friday afternoon, in the cold conservatory among the dead geraniums, no distance at all. He had kissed her there, against a pane of frosted glass, very gently, after asking. She had kissed him back. Neither had said a word about the envelope, or the debt, or the thing that stood at the edge of every room they entered. It was the happiest she had been in two lives, and it weighed on her chest.

On Friday night, Mrs. Venn went to bed early, with a pointedness that could have been heard on the quay. Marco made his rounds, locked the east door, and withdrew to the hall with his newspaper. The house settled. And at ten o'clock Sienna found herself on the rag rug before the library fire, in her stockinged feet, with a cup of salted tea in her hands and a man at the other end of the hearth, not quite touching her, looking into the flames.

They had been silent for a long time. It was a good silence. It had a kind of warmth in it, and a long unhurried patience, like two ships riding at anchor in the same bay.

"May I ask you something?" said Sienna.

"Always."

"Rule two. It isn't a gentle question."

"They are the only kind that you ask." The corner of his mouth moved. "Go on."

She set down the cup. She drew her knees up under the green wool of her skirt and wound her arms about them, and looked at the fire, because she could not look at him. "Tell me about the end," she said. "Yours. Not the glass. The room."

He did not answer at once.

The fire shifted. A log broke, and sent up a fountain of sparks, and settled. She heard him draw a long breath, and let it go, and she felt, rather than saw, the whole slow weight of what she had asked travel across him, from his shoulders to his hands.

"Why?" he said. "Why now?"

"Because I only know mine." She did turn then. "I know the cold in my fingers, and the coin on my tongue, and the way the ceiling went gray. I know your hand, and I know you lay down. I do not know what happened to you. I have been walking around the edge of it for three months. I told you once I would not decide for you what you could bear. I won't. But I would like, if you'll let me, to hold your end of it, as you held mine."

It was a long moment before he spoke.

"It was slower," said Matteo.

He said it very quietly. He was looking at the fire, with his bandaged hand lying open on his knee, and the light ran along his jaw.

"I drank the whole glass," he said. "I want you to know that. It was gone in two swallows, because I was happy and not thinking, and I had just wished you a long life. But I am a very much larger man than you. The same dose, in a bigger frame, takes longer. You went in minutes. I took, I think, ten."

"Ten."

"Perhaps twelve. I did not count. I only knew that I could still hear." He drew a breath. "The cold was the same. It began in my fingertips, and I thought, I'm tired, I have been standing too long. Then the taste, like a coin, and a tingling in my lips. I knew it by then. You had told me, without a sound. I watched your face change."

"Did it hurt?"

"Not in the body. I have told you that." A faint, tired breath. "The voice went first. Then the legs. I was on my knees, and then I was beside you on the floor, and I could not feel my hands. I had hold of one of yours. I looked at my own fingers, round yours, and I could see them closed, and I could not feel that they were. I thought, that is very curious. I thought, I am holding her, and I cannot tell."

She put her hand out. She did not decide to. It crossed the space between them and closed over his, on his knee, over the white dressing, and he turned his palm up under hers and held on.

"I put the veil under your head," Matteo said. "I remember that. It seemed important that it should be soft. And I counted your pulse, with two fingers on your throat, as long as I could feel it. It went slow, and then slower, and then I lost it. I did not know whether it had stopped or whether I could no longer feel. I went on pressing. I went on pressing for a long time."

Her eyes had begun to burn. She did not blink.

"I said your name," he said. "I kept saying it. I could not hear myself. I thought it must be coming out as a whisper. Then someone began to shout in the corridor, a great way off, and there were feet running, and I thought, Marco. He is coming. And I thought, he will be too late, and he will never forgive himself, and I must tell him it was not his fault." His mouth twisted. "That was the last practical thought I had. I wanted to spare Marco."

"That's absurd."

"Yes." He almost smiled. "I have always been absurd. It is only that no one knew."

The fire murmured. She waited. She had learned, over a long winter, the sound of his silences, and she knew that this one was not finished. It had a depth in it. It was the quiet of a man standing at the edge of the part he had never told.

"There is something more," she said.

"Yes."

"You have not told this to anyone."

"Not even Marco." His grip tightened on hers, very slightly. "I have gone over it a thousand times. I do not know what it means. I have told myself that it was a dream. That the poison does strange things at the end. But it was not a dream. I was awake. I have never been more awake."

"Tell me."

He drew breath. She felt it go through him, and she held on.

"Before Marco came," said Matteo, "before the shouting reached the door, there was a moment when everything was quiet. The house, the corridor, all of it. I lay on the carpet with my cheek against the silk of your sleeve. I was looking at the doorway. It was open. I had left it ajar when I came in, I think, to bring in the bottle. A thin stripe of light fell across the floor from the passage lamp, and in it, slowly, a shape came between me and the light."

The fire popped. Neither of them moved.

"I could not see a face. The lamp was behind it. There was only a shape, upright, perhaps a head taller than the door handle, in a long dark garment, a coat or a gown. It stood still. It did not call out. It did not come in. It stood in the doorway for what felt like a very long time, looking at us, at you and me on the floor. I tried to speak. I could not. I thought, help us. I thought, please." His voice dropped. "And it said something."

"What?"

"It whispered." He closed his eyes. "Two words. So quiet I almost thought I had imagined them. They were not meant to be heard by anyone but the room. Forgive me."

Sienna did not breathe.

"Forgive me," said Matteo, very softly. "That was all. And then the shape stepped back out of the light, and the door was drawn to, a hand's breadth, as one closes a door on a sleeping child. And a moment later Marco was there, with his shoulder against the frame, and I saw his face. That was the last thing I saw."

The room had gone very still. She heard the clock in the hall. She heard her own heart, slow and heavy in her ears.

"A man or a woman?" she said. Her voice did not seem to belong to her.

"I do not know." He opened his eyes. They were dark and wet and steady. "It was a breath, Sienna. A thread of sound. I could not have told you. It was not loud enough to have a sex." A pause. "But I knew it."

"Knew it."

"As you know a smell from childhood before you can say where it comes from." He shook his head slowly. "I did not recognize the voice. I recognized the sorrow in it. I have heard that exact sorrow before. In my own house. In a person who was being very kind to me."

It went through her like cold water. She saw it all at once, laid out in the firelight like instruments on a tray. A gentle voice, a pair of dry soft hands. A silver head bent over her fingers in a ballroom. A woman in a white coat with fear behind her gray eyes, whispering to a clinic wall. Three years ago he came to me. He was a very good pupil. She did not say any of it. She only drew her knees up closer and held his hand so hard that her knuckles ached.

"It stood there," said Sienna slowly. "It saw us. It was still on the floor with us. And it said forgive me, and it shut the door."

"Yes."

"It could have called for help."

"Yes."

"It chose not to." Her voice cracked. "It wasn't a stranger. It wasn't someone who walked in by mistake. Nobody says forgive me to a stranger."

"No." He did not look away. "That is what I have thought, every night, for two years."

She said nothing. She could not. She turned her head, and laid her forehead against his shoulder, there in the firelight, and felt the whole length of him shudder. He did not move. He did not put his arm around her. He sat still, with his hand held tight in hers, and let her do it, and she understood that he was giving her the room to cry or not to cry, as he had given it to her in the dark of the green room, with no reproach and no demand.

"I am so sorry," she said into his sleeve.

"For what?"

"That you lay there alone."

"I was not alone," said Matteo, so low that it was hardly a sound. "I had your hand. It was cold, and I could not feel it, but it was there. I would not have given it for anything in the world."

She began to cry then. It was very quiet. It came out of her as it had in the green room, steadily and without noise, and soaked through the wool at his shoulder, and he let it. After a while his arm came round her, slow and light, with a whispered May I that she answered by turning into him. She felt his chin come to rest on the top of her head. The fire sank to a red seam. Outside the tall window the snow began again, soft and silent and enormous, and the whole dark house seemed to lean close round the two of them like a held breath.

They sat so for a long time. Two people who had gone down in the same ship, and been washed up on the same shore, and had not yet quite learned that the ground was solid under their feet.

"It is strange," said Sienna, at last, drowsily. "We have sat in the same room a hundred times. We've eaten off the same table. We've gone through every drawer in this house. And I never once asked what it was like for you."

"Nobody asks the man who was there." There was a thread of a smile in it. "They ask the one who died."

"You died too."

"Yes," said Matteo. "It has been a great comfort to find someone who remembers."

She laughed, wetly, against his chest. It was such a small, absurd, human thing to say, and it undid her. She lifted her head. His face was very close, flushed with the fire and shining with tears he had not wiped away, and the unguarded tenderness in it was so complete that she forgot, for a moment, every question she had ever meant to ask.

Then she remembered.

It came to her in the quiet, whole and cold. She saw a cream envelope. She saw a line of black ink in a dead man's hand. Ask her about her father's debt. It rose behind her teeth, and she knew that it was now or it was not at all. He had just given her the truest and most terrible thing he owned, in the dark, in the firelight, without being asked twice. He was waiting, open as a door, for whatever she would put into the silence. If she was ever going to say it, this was the moment. She felt the words come up in her throat like water in a well.

"Matteo," she said. "There's something..."

He turned his head. His eyes, dark and bare and full of a fearful, steady hope, met hers.

She looked at him.

She thought of a small boat on a mantelpiece, and a man who had said I shall want to know the story of every plank. She thought of an old man in a doorway lighting a candle. She thought of two springs, and a road nobody had come down. She saw, as clearly as she had ever seen a trace on a screen, what it would do to his face if she said the word debt tonight, in this room, on the heels of the other thing. It would close over like a wound. It would look like punishment. And she could not do that to a man who had just told her that he wished he had been able to spare Marco.

"...something I'd like to know," said Sienna, "about Marco."

A tiny pause. A flicker, quickly gone. "Yes?"

"What did he do? When he found you. Did he know?"

He let out a long breath that might have been relief. "He did not say a word. He never has. He picked up the two of us, I am told, and carried us to the bed, and sat with his back against the door until the doctor came. And in the morning he said, I shall want a new shirt, sir, and went to bed." His voice shook with something that was almost laughter. "It was the only time in twenty-two years I ever saw him weep."

"I like him very much."

"So do I." He smiled, crookedly, at the fire. "It is a great nuisance."

She settled back against him. His arm tightened, a very little. The snow went on falling behind the glass.

It was a long while before either of them spoke again. She thought he might be asleep. She had her cheek against his shirtfront, and under it, slow and steady, she could feel a heart, a real one, going on and on in the dark. She thought of everything she had heard that night, and of the shape in the doorway, and of the tender cowardly gap in her own throat where a word had gone back down. She was warm. She was safe. She was lying to him, in the gentlest way a person can lie, by saying nothing at all.

And she thought: whatever else is true, I know now that he would never have left that room alive if he could have stayed with me.

"Sienna," said Matteo, very low.

"Mm?"

"I would give anything to tell you everything."

She lay still.

It was a sentence like a hand on her shoulder. It was said so softly, so plainly, with such a sad and helpless sincerity, that for a moment she did not hear what was in it. Then she heard.

Would.

Not will. Not shall. Not I am going to. A man in the daylight says I will tell you everything, and means it. A man in the dark says I would give anything, and means that, too, and means something else besides. He means that he stands on one side of a door with his hand on the latch, and wishes, with every fibre of his being, that someone would open it from the other.

She did not move. She did not answer. She let her eyes close, and her fingers tighten in the soft wool of his shirt, and she let him think that she had fallen asleep.

But she did not sleep for a very long time. She lay with her ear against his heart, listening to it beat, and counted, one, two, three, four, hold, out for six. And when the fire was nothing but a red eye in the dark and the great clock in the hall struck two, she knew, with the clarity of a woman who has seen a result before, that she had let a second door close on a man she loved, and that the next one she might not be able to open at all.