The fourth moon came on the twenty-ninth night after the siege, and this time they were ready for it.

Or as ready as two people could be who had agreed, in the plain light of a winter noon, to walk into the one fire neither of them could put out.

Valeria spent the day in the old cell. She scrubbed the stone herself, over Malakor's protests, with a stiff brush and a bucket of lye until the floor was pale and the worst of the old stains had faded to ghosts. She laid fresh furs against the north wall, where the stone held the least cold. She placed a pitcher of water and a clean cloth beside the bed. She hung a small lantern from the ceiling, low and amber, so that whoever woke in the dark would not wake into blackness. She did not chain the rings to the wall. They had agreed on that, after a long evening of argument and one very quiet silence, when Alaric had said, in a voice that sounded as if each word were being drawn from him with pliers, that he would rather be held than bound.

"It is a risk," Kaelen had said, standing in the doorway with his arms folded and his weight on both feet now, the crutch finally abandoned. "Forgive me, my lord, but it is. If the curse takes you before she can reach you..."

"Then you will have the key to the outer door and the order to use it," Alaric had said. "And you will not hesitate."

"I will not like it."

"No. But you will do it." A faint wry smile. "It is a measure of how far we have come, I think, that you now argue about the manner of it rather than the fact."

Kaelen had said nothing to that. He had only looked at Valeria, for a long, grave moment, and Valeria had understood what he was asking, and had nodded.

She finished the cell by the sixth bell and washed her hands in the basin, and stood for a time looking at the room she had made. It looked, she thought, almost like a place where a person might sleep. Not the dungeon of her memory. Not the chamber of the Crimson Empire, with its drains and its rings and its scrubbed unforgiving tile. A place where two people might lie down, afraid, and be gentle with one another until the morning.

"It is beautiful," said Alaric, from the doorway.

"It is a cell."

"It is the first cell in the history of this citadel that someone has tried to make comfortable." He came in slowly, taking in the furs, the lantern, the neat folded cloth. His voice was low. "Valeria. You must tell me if you cannot do this. If it is too soon. There is no shame in it."

"I am not afraid of the cell."

"That is not what I asked."

"I know." She turned to face him. "I do not know if my scent is strong enough. I do not know if I have anything to give. I know that last month I walked into this place with nothing, and you held, and we both lived. I think the thing that held you was never what was in my veins." She laid her palm flat against his chest, where the scar lay beneath the cloth. "I think it was this. Whatever this is."

He covered her hand with his. "And if I am wrong? If the curse has bitten deeper? If I cannot hold?"

"Then I will be here, and you will be here, and we will see what happens." She smiled, and found that the smile was true. "That is the only plan I have ever trusted."

*

Malakor caught them on the way up the stair, a small clay basin cradled in both hands and an expression of barely contained excitement on his ink-stained face.

"Forgive me," he said. "I know this is not the hour. But I could not wait. I have been working since dawn." He set the basin carefully on the edge of the step. "The first three toxins. Wolfsbane, nightshade, deathcap. All northern. I have distilled them according to your notes and held them in a glass of spring water for eight days. I would like you to see what happens."

"What do you need from me?" asked Valeria.

"One drop. From your finger. No more." He glanced at Alaric, with the nervous, scrupulous air he had learned to wear in Valeria's presence. "With your lord's permission, and in his sight, as we agreed."

Alaric inclined his head. "Proceed."

She pricked her finger with the small silver needle Malakor held out and let a single bead of blood fall into the basin. For a heartbeat nothing happened. Then the water, which had been clear as glass, began to cloud, a soft, spreading violet swirl, as though ink had been dropped into milk. It turned slowly, once, twice. And then, quite abruptly, it cleared, and in the center of the basin a single faint thread of silver light hung in the water like a strand of spider silk, trembling.

Malakor made a small sound. "There it is," he whispered. "The echo. Only a thread. The full twelve will make it a rope. But it is there, my lady. It answers."

Valeria stared into the basin. She felt Alaric come to stand behind her, felt the warmth of his hand settle against her back, and for a moment she let herself believe it.

"It is working," she said, almost inaudibly.

"It is beginning to." Malakor straightened, flushed, grinning like a boy. "I will need the remaining nine. The southern ones. But if the first three can do this..."

"Then the rest will follow," said Alaric quietly, and his hand tightened on her spine.

None of them said what all of them thought. That a thread was not a rope, and three was not twelve, and that the road to the south was long, and the clock in Alaric's chest was running fast. But for a moment, bent over a clay basin on a cold stone stair, they allowed themselves to look at that thin silver gleam and call it hope.

*

The moon rose at the ninth bell, round and white and cold, over a world the color of pewter.

Alaric lay on the furs with his head in her lap and watched it through the high slit of the window, a bright, pale coin pressed against the black. He had taken off his coat and boots. He wore only a loose linen shirt and trousers, and she could feel the heat of him through the cloth, the slow, steady fever that had already begun in his blood. His eyes were closed. His breathing was deep and measured, the careful rhythm of a man who was concentrating on it.

"Tell me when it starts," she said quietly.

"It has." His voice was calm. "Under my ribs. A little weight, like a hand resting on a table. It is patient tonight."

"Does it hurt?"

"Not yet." One eye opened, amber and wry. "I am told it is polite to hurt only after the second bell."

"You are making jokes."

"I find I have a great many, when I am frightened. I suppose I never had occasion to discover that." He turned his head and pressed his cheek against her thigh. "Will you talk to me? Anything. I think it would help."

She thought for a moment. Then, slowly, searching, she began to tell him about the girl behind the wall.

She had never told the whole of it, not even in the study, the night she spoke of the taps. She told it now, in a low unhurried voice, while the moon climbed higher and the lantern light moved over their faces. She told him about the code they had built over four years of patient knocking: one tap for hello, two for I am here, three for are you well. She told him about the winter when the girl had been ill with fever for twelve days, and how Valeria had spent every one of them with her ear against the stone, tapping, tapping, until her knuckles bled, because the one thing she could do was refuse to let that small steady rhythm stop. She told him about the morning the knocks had not come back.

"I never learned her name," she said. "I used to give her a different one every night. Rose. Wren. Marigold. I thought I would find her, someday, and ask which she liked best."

"I think," said Alaric quietly, "that she would have liked Wren."

"Why?"

"Because it is small and brave and stubborn, and it sings in the dark."

Valeria's throat closed. She bent and pressed her lips to his hair, and felt him smile.

The first spasm came an hour later.

It went through him like a wave through a field of grass. His whole body arched, and the breath left him in a rough hiss, and his fingers clenched in the fur. Valeria did not move. She kept her hand steady on his shoulder and her voice level.

"I am here."

"I know." His teeth were clenched. "It is worse. It is worse than the last."

"Breathe."

"I am breathing."

"Breathe slower." She slid down beside him on the furs and wrapped her arms around him, fitting her body along his, her cheek against his collarbone, and felt the heat of him like standing before an open forge. A faint dark tracery had begun to spread along his throat, fine as spider's silk. She pressed her lips to it, softly, without fear, and he shuddered.

"There," she murmured. "Stay with me. Count the lantern. One. Two. Three."

He counted. His voice was ragged and slow, and it frayed on the fifth, and she held him through the sixth, the seventh, the eighth, matching her breath to his, saying his name between the numbers like a rope thrown across a gulf.

It was a long night. She would not remember all of it afterward. There was the stretch between the third and fourth bell when his skin began to split along the shoulders, and the black fluid welled up and ran down, and she wiped it away with the damp cloth, over and over, murmuring nonsense. There was the moment when his claws came, and he flung himself away from her in horror, crouching in the corner of the cell, and she had to cross the stone floor on her knees and take his clawed hands in hers, ignoring the way they trembled, and tell him, in a voice she did not know she possessed, that if he wished to hurt her he would have to do it while looking into her eyes.

"I will not," he gasped. "I will not, I will not."

"Then you will not."

"Valeria--"

"Look at me." She held his gaze. "I am not asking you to be brave. I am asking you to be here."

Something moved behind the red in his eyes. A flicker. A shaking. He closed his hands around hers, so carefully, so gently, with the fingers that were not quite fingers, and rested his forehead against hers, and wept.

The scent came then, and neither of them expected it.

It rose from her skin in the heat of the cell, from the damp hollow of her throat and the pulse in her wrist, faint at first and then fuller, a warm, sweet, spiced fragrance like wine heated by a fire. She felt Alaric's breath catch. She felt the tension in his body break, just slightly, like a drawn bow slackening, and she realized with a thrill of wonder that her blood was still spent, that she had nothing to give in the way of remedy, but that the scent was back. Not the full strength. Not the old power. A thin, living thread of it, rising like smoke.

"Valeria," he said, in a voice she hardly knew. It was almost his own. "Oh. That is..."

"I know."

"It helps."

"I know." She laughed, shakily, through tears. "I did not do anything."

"You are doing everything." He drew her down against him, and she felt his arms close around her, still burning, still tremoring, but human, so human. "You are the whole of it. You are the only thing that has ever been enough."

They held on together. The moon crossed the slit of the window and began its long slide down the western sky. The curse fought, in long savage waves, and each time it receded a little less far than before. Twice the bell was rung above them, a tolling that carried down through the stone, and each time Valeria heard the faint scuff of boots on the stair outside, and knew that Kaelen was there, standing guard, his hand on the key, unwilling to be anywhere else.

At the fifth bell, the worst of it broke.

She felt it go. It left him all at once, like a fever breaking, and he sagged against her, shaking, spent, his skin cooling beneath her hands. She lay very still and listened to his breathing slow, and for a long time neither of them spoke.

"I held," he said at last, hoarsely.

"You held."

"I am not sure how."

"I am." She turned her face against his throat. "You are not alone."

He did not answer. He only pulled her closer, and she felt his tears dampen her hair.

*

They slept until the afternoon.

She woke to find sunlight on the stone and Alaric already awake, sitting up against the wall with a blanket around his shoulders, looking at his hands. She came to sit beside him. For a minute she said nothing, only leaned her head on his arm, and he let her.

"The claws came back at the third bell," he said at last. "At the ninth, again. But I did not lose myself. I think I did not lose myself even once."

"No."

"It was worse than the last time. And yet I was clearer." He turned his hands over, wonderingly. "I do not understand it."

"I think you are stronger than you were." She hesitated. "Or the thing that holds you is."

"Perhaps." He looked at her, and the tenderness in his eyes made her chest ache. "Come. Kaelen will have kept breakfast for us. I should like to eat something that is not bread."

They climbed the stairs together, slowly, leaning on each other. In the corridor above, Kaelen was waiting, gray with a sleepless night and slumped against the wall, and when he saw them he straightened as if he had been stung. His face did something complicated. He said nothing at all. He only crossed the space between them in two strides and gripped Alaric's shoulder hard, and held it, and bent his head.

"I know," said Alaric, very quietly. "I know."

Breakfast was laid in the small private hall, the same narrow room where Valeria had eaten her first meal in the north. Steam rose from a pot of barley porridge. There were boiled eggs and a heel of dark bread and a dish of dried apricots, and for the first time in weeks, Valeria found that she was ravenous. She ate until her fingers stopped shaking. Alaric ate beside her, slowly, with the grave relish of a man discovering that food had flavor.

It was while he was reaching for the honey that it happened.

She saw it before he did. His hand, stretched toward the jar, was suddenly not a hand. The fingers lengthened. The nails thickened and curved, black and glossy, with a faint, hideous click against the pottery. Fine dark threads crawled up his wrist from beneath the cuff of his shirt.

He froze.

For a long moment the room was entirely silent. A fly buzzed against the window. Alaric stared at his own hand as though it belonged to a stranger, and she watched the color drain from his face.

"No," he whispered. "No. It is not night. It is not..."

"Alaric." She kept her voice steady. "Look at me."

"It is morning. The moon has set. This should not..." His breath came short. "It is leaking. It is coming through even in the day."

She caught his wrist in both her hands. It was hot. She breathed slowly, evenly, willing her scent to rise, and felt him shudder, felt the claws shrink back by painful degrees, the fingers settling into their familiar shape. It took nearly a minute. When it was over he was sweating, and gray, and the pot of honey lay overturned on the table between them.

Neither of them said anything.

Malakor was sent for. He came at a run, rumpled and wide-eyed, and when he had heard it, he did not speak for some time. He examined the hand under the lamp, turned it over, tapped the nails, looked into Alaric's eyes with a small bright light. Then he sat back, and for the first time in all her knowledge of him, Valeria saw the alchemist look afraid.

"It is moving faster," he said. "Much faster than my calculations. The curse is no longer waiting for the moon to wake it. It is beginning to wake on its own." He pressed his fingers to his forehead. "Two cycles, my lord. Perhaps less. I would not like to say less. I would not like to say it at all."

Nobody answered. In the silence Valeria felt Alaric's hand close around hers, hard.

It was then that the raven came.

It struck the window with a thud and a clatter of wings, a big glossy black bird with a leather cylinder strapped to its leg, and when Kaelen caught it and unfastened the message, the paper trembled in his fingers. He read it standing at the window with his back to them. When he turned, his face had gone the color of old parchment.

"It is from Lord Orsen, my lord. A rider reached him from the capital this morning." He drew a breath. "The Great Council has met. The vote is done."