Chapter One
Grace
All my life, I was told to keep my head down.
"Don't let them see your eyes, Grace," Mama Sorrel used to whisper. "Don't let them hear your voice. A Cinder who shines too bright gets snuffed out."
For years, I thought it was just how things were for people like us. We were the wolfless ones. The bottom of the bottom. In the Caldera, your worth was measured by the strength of the wolf inside you. The strong ruled. The weak served. And the Cinders, the ones whose wolves had gone silent before they ever learned to howl, we cleaned the soot and fed the furnaces.
I worked the emberglass works in Lowburn, a smoke-choked town built into the side of the great basin. From the time I could walk, I carried trays of molten glass and breathed in ash until my lungs felt like cracked clay. I never minded much. I was good at surviving. I was good at being invisible.
I had a wolf, technically. Her name was Vesper. But she never spoke and never moved. She slept somewhere deep inside me, quiet as a stone at the bottom of a well. Sometimes, late at night, I pressed my hand to my chest and tried to feel her breathing. I never could.
So I stopped looking for her. I stopped looking for a lot of things.
The Caldera was ruled by House Ashborne. Everyone knew their story. Every generation, the Ashborne line birthed not one heir but three. Three alpha brothers, born sharing a single soul. They called it the Tri-Heart. Their power was the strongest in all the packs, but it came with a price. Three alphas tied to one soul burned too hot. If they never found their bonded mate, the one wolf who could anchor all three of them at once, their power turned wild. It became wildfire. It ate them from the inside until there was nothing left but ash and ruin.
That mate had a name. The Keystone.
Every year, the Ashborne brothers held a great rite to search for her among the noble daughters of the Caldera. Every year, they found nothing. And every year, the rumors said their power grew more dangerous. A village on the eastern ridge had burned to the ground the season before. They said it was an accident. I never believed it was.
But none of that was my problem. Kings and curses and burning brothers, what did they have to do with a Cinder girl who slept on a straw mat?
That was what I thought. Right up until the night Mama Sorrel started dying.
She had raised me since before I could remember. She was old and bent and her hands shook, but she was the only family I had. When the fever took hold of her, I sat by her cot for three nights straight, pressing wet cloths to her forehead and begging her to hold on.
On the third night, she grabbed my wrist with a strength I didn't know she still had.
"Grace," she rasped. "Come closer. There are things I should have told you years ago."
"Save your breath," I whispered. "Tell me when you're better."
"I won't be better, child." Her milky eyes found mine. "And you deserve the truth before I go."
She told me I was not born a Cinder.
She told me my name was not Grace of Lowburn. My true name was Grace Marwood. House Marwood, she said, had once been one of the proudest noble lines in the Caldera. My mother and father had been respected and loved.
And then, one night, soldiers came. They burned the Marwood estate to the ground. They dragged my parents out and branded them traitors to the crown, and they killed them in the square while the whole world watched.
"You were only three," Sorrel said, tears sliding into the deep lines of her face. "I was your nursemaid. I bound your wolf with old magic so no one would sense the noble blood in you, and I hid you among the Cinders. It was the only place no one would ever look."
My head was spinning. My whole life, every truth I had ever held, was crumbling like burnt paper.
"Why?" I managed. "Why would anyone kill them? My parents were traitors?"
"No." Her grip tightened. "They were betrayed, Grace. Someone close to them whispered lies into the right ears. Someone wanted House Marwood gone, and they got their wish." Her breath rattled. "I never learned who. But I know where the answer lies."
"Where?"
"The Emberhold," she breathed. "The Ashborne stronghold. Everything that happened that night was ordered from inside those walls."
I felt sick. "Sorrel, I can't go there. I'm a Cinder. They'd never even let me through the gate."
"There is more." Her eyes were starting to dim. "You had a sister. Wrenna. Two years older than you. The night the soldiers came, they did not kill her. They took her. Into the Emberhold." A tear rolled down. "She may still live, child. Your sister may still be alive."
The room tilted. A sister. I had a sister.
"How do I find her?" My voice cracked. "Sorrel, how do I even get inside?"
She reached under her pillow with a trembling hand and pressed something cold into my palm. A small pendant. A pale blue moonstone, set in silver gone black with age.
"Your mother's," she whispered. "It will open doors you cannot imagine. But guard it with your life. If the wrong wolf sees it, they will know exactly who you are."
Then her hand went slack.
"Sorrel?" I shook her gently. "Sorrel, no. Stay with me. Please."
But she was gone, with a small, peaceful breath, like a candle finally allowed to rest.
I sat there in the dark for a long time, holding the pendant so hard the silver bit into my skin. Everything I had been was a lie. My name. My blood. My silent wolf.
And somewhere behind the black stone walls of the Emberhold, my sister might be waiting.
I didn't sleep that night. I thought about all of it until the first grey light crept through the cracks in the wall, and that was when I heard the bell.
The Tithe bell.
Every season, the noble houses demanded a tithe from the lower castes. Not coin. Hands. A number of Cinder laborers, taken from the towns to serve inside the great houses for one full season. To us it was a death sentence dressed as an honor. People went up to the high houses and most never came back.
This season, the tithe was being collected for one house above all others.
House Ashborne. The Emberhold.
I stood up. My legs were shaking, but my mind had never been clearer. I wrapped Sorrel's body, kissed her cold forehead, and slipped the moonstone beneath my collar where no one could see it.
Then I walked out into the ash-grey morning, straight toward the line of frightened Cinders gathering in the square, and I gave the soldier my name for the tithe.
"You sure, girl?" he sneered, not even looking up. "Folks don't come back from the Emberhold."
I lifted my chin.
"I'm not planning to come back," I said. "I'm planning to find someone."