Finch Spire swallowed me whole.
Gates of iron and silver runes swung open without hands touching them. A driveway lined with bare trees twisted toward a tower that climbed so high its upper floors vanished into permanent cloud cover. Gargoyles crouched at every corner, wolves with clock faces where their eyes should have been. I felt their stone gazes track our approach.
Caspian did not speak during the ride. He sat across from me with his large hands resting on his knees and his pale eyes fixed on some middle distance I could not reach. The tremor in his fingers had worsened.
The carriage halted before doors tall enough to admit a shifted wolf. He stepped out without offering his hand. I had not expected him to.
Inside, warmth hit me like a wall. A grand entrance hall stretched upward into shadow. Tapestries lined the walls, wolves in battle, wolves bowing before a massive clock face. Chandeliers hung from invisible chains, their light provided by captured Chronoclast fragments, dead memories flickering inside crystal. A woman dancing alone. A ship cresting a wave of fire. Each fragment was a moment that no longer belonged to anyone.
A female servant emerged from a side corridor. Older than me by a decade. Brown hair in a severe knot. Grey dress marking her as household staff. Her eyes swept over my thin frame and bare feet with professional assessment.
"My lord. A room has been prepared in the east corridor."
"Good." Caspian did not break stride. "This is Iskra Volkov. She requires clothing, a hot meal, and a full medical assessment before nightfall. The sister is at Saint Verena's. Arrange for a specialist to visit her this morning."
"Yes, my lord."
He paused at the base of a sweeping staircase, his back to me. "Cooperate fully with everything required of you, and your sister continues receiving care. Resist, and the payments stop. Simple enough for you to comprehend?"
My hands curled into fists. "Perfectly."
He ascended into the shadows without another word.
Lena, the steward, led me through a maze of corridors that grew progressively less grand. Tapestries thinned. Chandeliers became simple oil lamps. We passed through the working heart of the Spire, the hidden machinery beneath the pack's public face.
"My lord has been searching for someone like you for years," Lena said quietly. "He will want to ensure you do not die before he gets what he requires."
"Someone like me. A Resonant."
She stopped walking. "I do not know that word."
"You are lying."
Her professional mask slipped. Fear surfaced beneath it. Genuine and carefully concealed. "My lord paid five thousand chrono-marks for you. That makes you valuable. It also makes you a target. Every rival pack will want to know what Caspian Finch considers worth that sum. Some will send spies. Some will send assassins. If you wish to survive long enough to see your sister healed, learn to keep your questions to yourself."
She opened a door. My new room was small but clean. A bed with actual sheets. A washbasin with running water. A window overlooking a courtyard of bare trees. Clothing had been laid out on the bed, a dress of dark blue wool, far finer than anything I had ever owned. Stockings. Shoes with actual soles.
"Meals at dawn and dusk in the servants' hall. My lord takes his meals privately. Do not enter the upper floors without his permission. Do not speak to pack members unless spoken to. Do not leave the Spire grounds." She delivered these rules like a litany. "Questions?"
"Many. Will you answer them?"
"Not tonight." She stepped into the corridor. "Wash. Dress. Rest. My lord will summon you when he requires you."
She closed the door. I stood alone in the small clean room, surrounded by gifts purchased with my own sale price, and felt the hum stir beneath my ribs with an insistence that was growing difficult to ignore.
Outside my window, a wolf howled somewhere deep in the Spire. The sound was not a hunting cry. It was pain. Old and deep and utterly alone.
I pulled the blue dress over my head and waited for the monster who owned me to call.
He called at midnight.
Lena fetched me without explanation, leading me upward through corridors that grew progressively colder. My breath misted in the air. Frost crusted the stone walls. The temperature dropped with each step until I was shivering inside my wool dress.
"The north wing is kept cold for him," Lena said. "Heat accelerates his deterioration. He rarely permits anyone to enter this section."
"Why does he permit me?"
"Because you are not anyone. You are his last hope. Whether you wish to be or not."
She stopped before a door of iron banded with silver runes. "He is inside. Whatever you hear, do not scream. Screaming triggers his hunting instinct."
She left me there.
I pushed open the door.
The room beyond was vast and freezing, its ceiling lost in shadow, its floor covered with shredded furs and overturned furniture. Claw marks gouged the stone walls. A massive fireplace stood empty. Moonlight poured through a single arched window, silver and cold.
Caspian Finch knelt in the center of the destruction with his back to me.
His shirt was torn. His shoulders heaved. His hands, braced against the stone floor, were no longer trembling. They were convulsing. A low sound escaped his throat, not human, not wolf, something caught between the two.
"My lord." My voice emerged steadier than I felt.
"Leave." The word was barely recognizable. "Now. Before I cannot control it."
"You summoned me."
"I made an error. Leave."
I should have run. Every instinct screamed at me to back through that iron door and flee down the corridor. But something in his voice stopped me. Pain beyond pride. Desperation beyond dignity.
My hum stirred, pressing against my ribs, recognizing something in his agony.
"I can help," I said.
"You cannot help. No one can help. This curse has been killing me for fourteen years. Your frequency bought me forty minutes of stability last night. Forty minutes. That is all you are capable of providing."
"Last night?" I had not sung for him last night. I had only stood near him.
He turned.
His eyes were no longer pale blue. They burned amber, the wolf surfacing, fighting for control. His face was gaunt with exhaustion. His silver hair hung damp with sweat. And his body was blurring at the edges, shifting involuntarily, bone and muscle and fur flickering in and out of existence.
"You hum in your sleep," he rasped. "Every night since my seer detected you, I have felt it. A frequency that calls to my wolf. Last night you were close enough that your unconscious resonance stabilized me for forty minutes. The longest I have gone without a shift in six years."
My blood turned cold. "You felt me humming. From across the Spire."
"From across the city. Your frequency is not random noise, Iskra Volkov. It is a song composed specifically for my bloodline. A song written by my ancestor over a century ago. And it is the only thing in existence that can either heal me or destroy me."
His form blurred violently. He threw his head back and screamed, a sound that was half human, half wolf, entirely agony.
My hum surged in response. I could not stop it. The pressure in my chest became unbearable, a note demanding release, a frequency seeking harmony. I opened my mouth and sang.
The sound that emerged was not the accidental four point seven seconds that had fractured the Low District. It was intentional. Directed. A note shaped by a bloodline I did not understand.
Caspian's convulsions stopped.
His amber eyes fixed on mine. His blurring form stabilized. He stared at me with an expression I had not seen on his face before. Not coldness. Not calculation.
Recognition.
"You are a Song-Wolf," he breathed. "The last one. The very last one."
Before I could ask what that meant, his body folded. He collapsed onto the furs, unconscious, his chest rising and falling with breaths that were steadier than I had yet seen.
I stood alone in the freezing room with the monster who owned me sleeping at my feet, my hum still echoing off claw-marked walls, and understood that everything I believed about myself was about to change.