The anvil sang.
It was a sound Maren Ashwick had known since she was small enough to sit on a sheepskin by the forge door and watch sparks rise like orange moths against the soot-black rafters. Back then the ring of hammer on iron had been her lullaby, her mother's voice and the metallic chorus tangled together in memory. Now, fifteen years older and twice as stubborn, she stood at the same anvil with the same leather apron slung across her chest, but the world outside those timber walls had grown sharp-edged in ways she could not name.
The Forgewright had not spoken to her all morning.
He moved behind her, steadying the bar with long-handled tongs as she shaped a hinge for Old Helwise's kitchen door, and his silence pressed against her shoulders like a damp wind. The Forgewright was not a man given to silence. He muttered to the iron, cursed the bellows, sang snatches of songs in a tongue the border villagers pretended not to understand. His quiet was louder than his bellowing.
"You're brooding," Maren said, striking the metal so the words came out in time with the hammer.
"I'm working."
"You've held that bar still for thirty seconds. It's cooling."
He grunted and rotated the iron. She struck again, folding the bright edge over itself, watching the color shift from yellow to a deep, angry red. The smell of scorched scale filled the shop. Her arms ached in the good way, the way that meant she was earning her supper.
"Must be about the Conclave," she said. "Isn't it. Someone came by this morning."
The Forgewright did not answer. He adjusted his grip on the tongs.
Maren blew a strand of hair out of her face and set the hammer down. "Master."
"Aye."
"You're being impossible."
"I'm being careful."
The word landed between them like a dropped coal. Maren studied the back of his neck, the way the tendons stood out under sun-dark skin, the white shock of hair above his collar. She had seen him lift a cannon barrel with a chain and a prayer. She had seen him weep, once, when he thought she was asleep, over a letter he never let her read. Careful was not a word the Forgewright used. Careful was what he was when the world had come too close.
She pulled the apron strings tighter and picked the hammer back up. "Then tell me what to be careful of."
A knock sounded at the shop door, three measured strikes against the oak.
Neither of them moved.
The knock came again, patient as a crow.
"Mistress Ashwick." The voice from the threshold was cool and precise, a woman's voice cut from clean stone. "I am here at the request of the Emberblood Conclave, and I would speak with the keeper of this forge."
The Forgewright set the tongs into the quench bucket. Water hissed and spat. He did not look at Maren, but his hand found her shoulder and squeezed once, a gesture so brief it barely existed.
"Let her in," he said quietly. "But you stay behind me, lass. You stay behind me until I say."
The hinges, she thought, and almost laughed. She set the hammer down and followed him to the door.
The woman who stood in the Forgewright's doorway wore grey from hood to heel. Her cloak was lined with something that caught the firelight in soft, oiled ripples, and her face was the kind of pale that comes from never seeing true sun. She was not young, but she was not old either. Her eyes were the color of river ice, and she looked at the Forgewright as though he were an inconvenient piece of furniture.
"Lady Coldhaven," the Forgewright said. He did not bow. "You've come a long road."
"The road is shorter than you would think, when one knows which stones to step on." She did not smile. "You are the master smith of Threshold."
"I am."
"And this," the woman said, turning her gaze to Maren without moving her head, "is the girl."
Maren felt the weight of that look settle across her shoulders. It measured her. It priced her. She lifted her chin a fraction and did not step back.
"My apprentice," the Forgewright said, and there was iron in the word. "She's not part of any business of yours, my lady."
"Every soul under this roof is part of my business, master smith. The Conclave has not forgotten what was lost here. Nor what was hidden." Lady Coldhaven's mouth softened, but not into warmth. "I will not bandle words with you in either place. I am here on a matter of hearth and hearthstone. The Coldhaven seat has stood empty for three generations. The hearthfire will not wake. Our ancestral hearthstone is cracked, and without a hearthstone a Coldhaven cannot call kin, cannot speak oath, cannot hold a vote at any conclave of the realm. We are, in the eyes of every law that matters, a house of ghosts."
The Forgewright leaned against the doorframe. He folded his arms across the breadth of his chest. "An old story, my lady. A sad one. But I cannot mend a hearthstone. Even the Emberblood smiths could not have mended that. A hearthstone is a thing of blood and binding. The metal in it is not metal. It is memory."
"I know what it is."
"Then you know what you ask."
"I am asking," Lady Coldhaven said, "for you to try."
Maren watched her master's jaw work. She saw the small flinch at the corner of his mouth, the one he tried to hide, and she knew what it meant. The Forgewright was afraid. Not of the woman. Of the answer he might have to give.
"Come in," he said at last. "Out of the street."
Lady Coldhaven crossed the threshold as though she had earned the right to it. Her boots were clean. Her cloak did not stir the sawdust on the floor. She stood by the quenching trough and folded her hands at her waist and waited, a woman carved from winter.
The Forgewright banked the forge with a single, practiced motion. He pulled a stool from beneath the workbench and offered it to her. She did not sit.
"A year," she said.
"A year of what."
"Service. From a member of this household. One full turn of the seasons. In exchange, you will attempt the mending of my hearthstone, and the Coldhaven line will remember that the smiths of Threshold stood with us when we needed them."
The Forgewright looked at the floor. He looked at his hands. He did not look at Maren.
"You're buying a soul, my lady."
"I am buying a year of labor. The soul remains where it has always been."
"A year's labor," he said softly, "from this household. There's only two of us under this roof."
"I am aware."
He turned then. He looked at Maren, and she saw it, the thing he had been holding behind his teeth since the knock came at the door. He had known. Someone had told him, some bird from the south, some letter slipped under a door, and he had known what was coming, and he had tried to keep her busy at the anvil so she would not see the cloaked horse being led into the village.
"No," she said.
"Maren."
"No. Whatever this is, whatever she's offering, no. You don't get to sell me to a Conclave I don't belong to."
"Maren Ashwick." Lady Coldhaven's voice was very quiet. "You do belong to it. More than you know."
The Forgewright put his hand on Maren's arm. Not pulling her back. Not pushing her forward. Just holding her there, in the middle of the room, between the woman in grey and the iron and the fire that was banking down to coals.
"Tell her," Maren said to him, and her voice was smaller than she wanted it to be. "Tell her I'm just an apprentice. I'm no one. I'm the orphan you took in because her mother disappeared and there was nowhere else for her to go. Tell her."
He did not tell her. He stood with his hand on her arm and he did not tell her anything at all, and the shape of his silence was the same shape as the letter he wept over, the one she had never been allowed to read.
The coals clicked softly in the belly of the forge. The smell of scorched scale and quench water hung in the air. Somewhere outside, a child was calling to another child, their voices bright and meaningless under the wide sky.
Lady Coldhaven watched them both with the patience of a woman who had come a long road and was prepared to wait a little longer for what she had come to take.
Lady Coldhaven stepped past them both and moved toward the cooling racks where the day's work hung in orderly rows. Her fingers did not touch the iron. She let her gaze travel along the hanging tongs, the hook-brands, the unfinished hinges, as though she were reading a wall of small text. Then she turned and looked at Maren again, and when she spoke the cold had a different edge to it, not sharper but older, like a blade that has spent years folded in a drawer.
"There is a gate at the edge of the Cinder Wastes," she said. "Built of three kinds of stone, sealed since the Cinderheart Pact. Every child in the realm is taught that it does not open. Every child is taught that to even speak of opening it is treason." She paused. "Every child is taught that the pact made the realm safe. And every child is taught that the Cinder Wastes are dead."
The Forgewright shifted his weight. The floorboard under his boot gave a small groan.
"The wastes are not dead," Lady Coldhaven said. "Something has woken in them. Something that should not wake. The seal is failing. The wardens who watch the gate have reported tremors in the ash, and the kind of tremors that mean a name has been spoken. We do not know whose name. We do not know why."
She turned her hands palm up. A small flame rose from the centre of each hand, blue at the root, white at the crown, and she held them out before her as though she were weighing nothing at all.
"The Conclave does not send envoys for tremors," she said. "The Conclave does not send envoys for rumours. The Conclave does not send envoys at all. I am here because the High Arbour has stood empty for nine days. The Arbiter who keeps the keys has vanished. And the gate itself has begun, in the small hours, to sing."
The flame in her hands guttered. She closed her fingers and it was gone.
"The Arbour," she said, "chooses its own. It has always chosen its own. It chooses from the Emberblood, from those whose line runs back to the first keepers of the pact. And it has chosen, in this generation, two names. One is a girl in the city who has not yet been told what she is, and the other," she said, and the cold in her voice thinned to something almost human, "is you."
Maren heard the word as though it were being said in a language she did not speak. She looked at the Forgewright. He was looking at his boots.
"The Arbour will not speak to the Conclave," Lady Coldhaven said. "It will not speak to the Council of Lords. It will not speak to a man of the forge, no matter how well that man has kept his secrets, and it will not speak to me. It will speak only to its chosen. And so I am here, Maren Ashwick, to ask you to come with me to the Cinder Wastes, to put your hand upon the gate, and to listen to what it has to say."
"I don't know what any of those words mean," Maren said.
"No," said Lady Coldhaven. "You don't."
A long silence fell into the forge. The coals ticked. The wind outside had dropped, and in the stillness Maren could hear, faintly, the sound of a child laughing in the lane. She thought it was Pip. She thought of Pip and wanted, suddenly, with a sharpness that surprised her, to see him.
"You were not chosen for your reason," Lady Coldhaven said, and the cold had returned. "You were chosen for your blood. The Emberblood is not a myth. The Emberblood is not a story. The Emberblood is a lineage, and you are the last living daughter of a line that kept the pact long before the Council of Lords existed. Your mother was the last keeper before you, and she is the reason the pact held as long as it did."
Maren felt the floor tilt. She put her hand out and found the edge of the anvil and held it. The iron was still warm and it steadied her.
"She didn't vanish," Maren said. "She left. She left because she wanted to leave. She left because the village was too small for her. That's what everyone said. That's what you told me," she said to the Forgewright, and her voice had an edge in it that could cut a man in two. "That's what you let me believe."
"I let you believe what Old Helwise asked me to let you believe," the Forgewright said. "And I have regretted it every day since."
Lady Coldhaven watched them with the patience of a woman who had waited nine days and could wait nine more.
"You need not decide tonight," she said. "You need not decide in this room. But you must decide before the next new moon, and the next new moon is eight days from now. If the Arbour is not spoken to by then, the seal will break of its own accord, and what waits behind it will not wait for introductions."
She let the silence hold for a count of three.
"I will be at the Pilgrim's Rest," she said. "I will take my evening meal in the common room and I will answer any question you bring me, if you bring me only one. And I will not lie to you. That is more than the Conclave offers most people."
She inclined her head, and the gesture was so formal that it might have been a bow. Then she walked out of the forge without looking back, and her footsteps went soft down the lane and were lost in the ordinary sounds of evening.
Maren did not move. The Forgewright did not move. The coals clicked softly in the belly of the forge, and the smell of scorched scale and quench water hung in the air, and somewhere outside a child was calling to another child, and the world went on as though nothing had happened in it.
"The girl has a talent for dirty work," Lady Coldhaven said from the doorway. She had not left after all, or she had come back, or she had never gone, and her voice was the colour of a winter sky. "She learned it at this anvil. She learned it in this village. She learned it from a man who taught her to put her shoulder into a hammer-stroke and not flinch when the iron spat. She is not the sort of girl who will weep at the gate. She is the sort of girl who will put her hand on the stone and listen. And that, Forgewright, is precisely why the Arbour chose her, and precisely why the Conclave needs her."
The Forgewright studied Maren with knowing eyes. He had the look of a man watching a young tree bend under a wind that had been blowing for a long time, and he had the look of a man who had always known this wind would come, and who had spent a small lifetime trying to bend it into a different shape.
"Maren," he said.
"Don't," she said. "Don't you dare."
He held her gaze for a long moment. Then he reached into the pocket of his apron and took out a small thing folded in oilcloth, and he put it into her hand and closed her fingers over it.
"Open it after I am gone from the room," he said. "And then come find me. And then we will decide what to do with what you have read." He paused. "What she has said is true. The gate is singing. The Arbour is choosing. And you are, whether you wish it or not, the one it has chosen."
He turned and walked out of the forge. The door did not close behind him. The lane was silent now, and the child had stopped calling, and the only sound in the world was the small ticking of the cooling iron and the slow, steady breath of Maren Ashwick as she stood alone in the forge with the small oilcloth parcel warm in her palm.
Maren unwrapped the parcel with fingers that did not tremble, because she had been raised by a man who told her that trembling was a luxury you saved for after the work was done. Inside the oilcloth was a square of folded paper, soft-edged with handling, the ink on it faded to the colour of old blood. She unfolded it and the words swam up at her in a hand she half-recognised, and the other half of the recognition came from a place below language, in the small bones of her wrist.
It was a birth record. Her mother's name was at the top of it, written in a clerk's careful hand, and beneath her mother's name, in the same clerk's hand, was the word EMBERBLOOD, and beneath that, in a different hand, rounder and softer, was a single sentence. Let her grow up without the burden of it, Helwise. Let her be only what she is. The fire in her will keep whether she knows its name or not.
The hand was Old Helwise's.
The fire in the forge guttered as if it had heard its own name spoken. The coals shifted, and the little dragon-shape of cooling iron ticked once, and Maren stood in the middle of the room with the paper in her hand and the gate singing in her ear and the whole of her life rearranged under her feet like a flagged floor with a pit dug beneath it.
She did not weep. She had been raised better than that. She folded the paper along its original creases, slipped it back into the oilcloth, and tucked it into the pocket of her apron against her hip, where it sat warm as a small, secret coal. Then she walked out of the forge and across the lane and into the back yard of the smithy where the Forgewright was sitting on the chopping block with his pipe out and his hammer across his knees.
He looked up at her. He did not ask what she had read.
"The Conclave wants me at the Arbour," she said. "In three days."
"I heard."
"Did you know about the Emberblood?"
"I knew."
"Did my mother know?"
"Aye. She knew. It was why she came to Threshold in the first place. To be away from the Conclave and the old laws and the constant watching. To be a smith's wife and nothing else, if such a thing was possible for a woman with that much fire in her blood."
Maren sat down beside him on the chopping block. The wood was sun-warm and rough against her palms. She could smell the river from here, and the first green breath of the willows, and beneath it the deeper smell of the forge, which was the smell of her childhood and would be the smell of her death whenever death came for her.
"Why did no one tell me?"
"Because Old Helwise asked us not to. Because she thought the knowing would be a weight on you before you had the shoulders for it. Because the Conclave has long memories and long arms and we thought, your mother and Helwise and I, that a girl who did not know she was Emberblood might be allowed to grow up as only a girl."
"And instead I grew up to be offered as a sacrifice to the Arbour."
"Aye." He drew on his pipe. The smoke curled up between them and was taken by the breeze. "There is that, too."
They sat in silence for a while. The gate's singing had faded to something felt rather than heard, a low resonance in the bones of the jaw and the small of the back. From somewhere down the lane came the sound of a child laughing, bright and ordinary, and the clang of a farrier's hammer, and the slow complaint of a cartwheel that needed greasing.
"I am going to sign it," Maren said.
The Forgewright took the pipe from his mouth and looked at her sidelong.
"You haven't even read the small print."
"There isn't any small print. There never is, with these things. There is only the big print, and the big print is the same as it has always been. One life for the safety of the realm. One life for the closing of the gate. One life for the keeping of the Arbour's bargain."
"And if I asked you not to?"
"I would tell you that you taught me better than to refuse a thing because I was afraid of it."
He was quiet for a long moment. Then he put the pipe back in his mouth and nodded, once, and the nod was the same slow nod he gave when she had struck a piece of work true for the first time, or held her temper through a difficult cooling, or come back from a mistake she had thought would break her.
"Right then," he said. "Into the forge with you. We have three days to make you something worth signing a contract with."
He rose, and she rose with him, and they went back into the smithy together, and the fire in the forge leapt up as if it had been waiting for them.
---
The Conclave Messenger came again at dusk, this time without the hood, and Seraphine Coldhaven was with her, dressed not in the white and ash of her office but in the plain grey wool of a traveller. She had a document case of pale leather under her arm and a quill of iron nib tucked into her belt, and she stood in the entry of the smithy and looked at Maren with the same flat, weighing gaze as before.
"You have had three days," she said.
"I have had three days."
"And your answer?"
"My answer is yes."
Something moved behind Seraphine's eyes, very slightly, like the flicker of a candle flame seen through thick glass. She set the document case on the anvil and opened it, and took out a single sheet of vellum that had been folded into quarters, and unfolded it, and laid it on the anvil with the solemnity of a priest laying a host on an altar.
The contract was written in iron ink. The letters of it glowed a dull, sullen red, like the last light in a dying fire, and they pulsed in time with the slow beat of the Arbour's song, and they cast a faint warmth on the under-side of Maren's wrist as she leant closer to them. The words were short and few, and they were written in a hand she did not recognise, and the ink smelled of nothing she could name except something between hot metal and old, dry wood.
"I, Maren Ashwick, last of the Emberblood line, do set my hand to this covenant in the sight of the Arbour and the Conclave and the holding of Threshold. In exchange for the closing of the gate and the keeping of the bargain made at Cinderheart, I offer my service to the Arbour for so long as the gate remains closed, or for so long as my life endures, whichever is the lesser term. I offer it freely, of sound mind and whole heart, and I seal it with the fire in my blood, which is the only seal the Arbour will accept."
Beneath the words was a single line for a signature, and beside the line, in a hand she did recognise, was the witness clause. Witnessed by Seraphine Coldhaven, High Arbiter of the Emberblood Conclave, in the presence of the Forgewright of Threshold, this day, in the third year after the Cinderheart.
"I will need a witness," Seraphine said.
The Forgewright stepped out of the shadow at the back of the smithy. He had been standing there the whole time, Maren realised, with his arms folded across his chest and his hammer over his shoulder, and he looked like what he was, which was an old man who had raised a girl and was about to watch her sign herself away.
"I witness," he said.
Seraphine nodded. She took the iron nib from her belt and uncapped a small vial of ink from the document case, and she mixed the ink on a square of slate with the practised motions of a woman who had done this before, and she held out the nib to Maren, handle first.
"You understand," Seraphine said, "that once the seal is set, it cannot be unset. That the Arbour will know you the moment the ink touches the page, and that it will hold you to the letter of what is written, and to the spirit of it, which is more binding than the letter."
"I understand."
"And you sign of your own will?"
"I sign of my own will."
Seraphine held her gaze for a long moment, and Maren held hers back, and the gate sang between them like a wire drawn tight.
Then Maren took the nib, and she bent over the anvil, and she set her name to the contract in letters that glowed iron-red as they dried.
The moment the last stroke of the k was finished, the ink flared once, bright as a struck flint, and then sank into the vellum and was gone, and the vellum was blank and white and felt warm to the touch, like the flank of a sleeping animal. The gate's song rose to a single clear note, held it, and let it fall away into a low, steady hum that Maren felt settle into the bones of her jaw and stay there.
She straightened. Her hand was shaking, very slightly, and she folded her fingers into her apron to hide it.
Seraphine took the vellum, folded it, slid it into the document case, and closed the case with a soft click of the hasps. Then she reached into the breast of her grey wool coat and took out a small thing on a thin iron chain, and she held it out to Maren on her open hand.
It was a copper locket, round as a sequin, plain as a button, with no engraving and no ornament and no clasp. It was warm to the eye before she touched it, and when she took it from Seraphine's palm it was hot enough to make her fingers tingle, and when she slipped it over her head and let it lie against the hollow of her throat it was warm enough to feel like a second pulse.
"It will grow warm against your chest whenever fire is near," Seraphine said. "Real fire, or the fire in the blood of those who carry the old covenant. It is the Arbour's mark, and the Conclave's mark, and it will not be taken from you by any hand but your own."
Maren touched the locket through the wool of her shirt. It was already cooling against her skin, settling into the rhythm of her own heartbeat, becoming a part of the small machinery of her.
"Why a locket?" she asked. "Why not a ring, or a brand?"
"Because a locket opens," Seraphine said. "And what is inside is yours to choose."
She did not say what was inside. She turned and walked out of the smithy, and the Conclave Messenger followed her, and the door closed behind them with a soft, definitive sound, and the lane was quiet again, and the only sound in the smithy was the small ticking of the cooling iron and the slow, steady breath of Maren Ashwick as she stood alone by the anvil with a copper locket warm against her chest and the Arbour's song humming in the bones of her jaw.
The Forgewright came and stood beside her. He did not speak for a while. Then he put his hand on her shoulder, briefly, the way he did when she had finished a piece of work he was proud of, and the weight of his hand was the weight of every hammer-stroke he had ever taught her to strike.
"Three days," he said. "And then the Arbour."
"Three days," she said.
"And then whatever comes after."
"Whatever comes after."
They stood together in the smithy as the dusk thickened outside the open door, and the gate at the edge of the world sang, and the locket at Maren's throat kept its small, steady warmth against her skin, and the iron in the forge cooled, and the evening came on, and somewhere in the willows by the river a child was laughing still.