The air in the laboratory tasted of iron and ozone.

"You are burning the roots, Elias," the voice said. It was not a human voice. It was the sound of wind moving through dry reeds, of stones grinding together deep in the earth.

I did not look up. My hands were stained black with soil that did not exist in any catalog. I was digging. I always dig.

"Stop," the voice commanded.

I kept digging. The trowel struck something hard. Not a rock. Something softer. Something that yielded with a wet, organic sigh. I pulled it free. A hand. Pale. Thin. Fingers curled like dried leaves.

It was my hand.

I looked down. My own body was still there, hunched over the pit, but the arm I held was severed at the wrist. The blood was black. It was not my blood. It was the blood of the world.

This is where the dream begins. Or perhaps where it ends. I can no longer tell the difference.

The world was gray. Not the gray of overcast skies in London, but the gray of ash. A city built of brick and bone. Spires twisted into the heavens, defying gravity, defying logic. This was the place I called home. The place I had built in my mind, brick by brick, year by year, while my body rotted in the ward in Ashworth Hall.

I was a scholar. Or I had been. Before the sickness took my mind and gave it to the mist. Now I was a collector of things that should not be. I collected the memories of the dead. I collected the shapes of things that had never lived.

My mentor was there. He stood on the balcony of the spire, looking out over the ash-choked streets. He was old. Older than time. His face was a map of wrinkles, each one a river that had dried up.

"Come," he said. He did not turn. "The tide is coming."

"I do not want to go," I said. My voice was small. It sounded like a child’s voice. A voice that had forgotten how to speak to adults.

"You have no choice," he said. "You are the vessel. You are the key. And the lock is broken."

I followed him. We walked through the streets. The people were there, but they were not people. They were shadows. They moved with the jerky, unnatural motion of marionettes. They did not see us. Or they did not care. They were focused on something else. Something in the sky.

The sky was bleeding.

Red streaks cut through the gray. They pulsed. They throbbed. Like a heart.

"What is it?" I asked.

"The Heart," he said. "The Heart of the World. It is sick. It is dying. And it is calling for a sacrifice."

"I am not a sacrifice," I said. "I am a man. I am Elias. I remember my name. I remember my sister."

"Yes," he said. "You remember her. That is why you are here. That is why you are the key."

My sister. Sarah.

The name hit me like a physical blow. A hammer to the chest. I gasped. The air tasted of copper. Of blood.

"Sarah is dead," I whispered.

"No," he said. "Sarah is waiting."

He pointed to the center of the city. There, in the square, was a figure. Small. Fragile. A girl. She stood with her back to us. Her hair was long and dark. It moved in the wind, though there was no wind.

"Go to her," he said. "Give her what she needs."

I ran. I ran through the shadows. I ran past the twisted spires. I ran toward the light.

She turned.

It was not Sarah.

It was a wolf.

A great gray wolf. Its eyes were yellow. Its fur was matted with dirt and blood. It snarled. The sound was low. It vibrated in my bones.

I stopped.

I could not move.

The wolf was Sarah.

No. The wolf was the thing that had taken Sarah. The thing that had eaten her life, her health, her mind, and left this husk behind. I had looked away. I had been in the laboratory. I had been digging. I had been so busy building my world that I had not seen what was happening in the real one. I had not seen her fade. I had not seen her shrink. I had not seen her become this.

This beast.

This monster.

And I had loved it.

I had loved the idea of her. I had loved the memory. But I had not loved the reality. I had not loved the pain. I had not loved the suffering. I had loved the legend. The distant legend of the perfect sister. The perfect girl.

The wolf stepped closer.

I felt a tear slide down my cheek. It was hot. It burned.

"I'm sorry," I said. "I'm so sorry."

The wolf tilted its head. It listened.

"I left you," I said. "I left you to rot. I built my walls. I built my spires. I hid from you. I hid from the truth."

The wolf lunged.

I did not fight. I did not run. I opened my arms.

I let it bite me.

The pain was immediate. It was sharp. It was clean. It was the pain of a truth finally spoken. The fangs sank into my shoulder. I felt the bone grind. I felt the blood flow.

But it did not kill me.

It transformed me.

The pain became a light. The light spread through my body. It washed away the gray. It washed away the ash. It washed away the fear.

I saw the world.

Not the world of my dream. Not the world of the spires and the shadows.

I saw the ward.

I saw the bed. I saw the body. I saw the tubes. I saw the monitors.

I saw Sarah.

She was there. In the next bed. She was not a wolf. She was a girl. She was small. She was frail. She was dying.

She was smiling.

She was looking at me.

Or perhaps she was looking at the air above me. I did not know. It did not matter.

I felt the connection. The primal, instinctual bond. The bond that is older than language. Older than thought. The bond of blood. The bond of pain.

I had sacrificed my mind. I had sacrificed my sanity. I had sacrificed my life.

And in doing so, I had saved her.

Not her body. Her soul.

I had given her the peace she needed. I had given her the release she needed. I had carried the weight of her suffering so that she did not have to.

I had become the beast. I had become the monster. I had become the shadow.

And I had protected her.

The wolf in my mind howled.

The light in the dream faded.

The gray returned.

But it was not the gray of ash. It was the gray of dawn.

The air was cool. It smelled of rain.

I opened my eyes.

The ceiling was white. The light was soft. The beeping of the monitor was slow. Steady.

I turned my head.

Sarah was asleep.

Her breathing was shallow. But it was steady.

I reached out. My hand was shaking. My fingers were thin. They were the fingers of a dead man.

I touched her cheek.

She did not wake.

But she smiled.

A small, faint smile.

It was enough.

It was everything.

I closed my eyes.

The dream was over.

The legend was dead.

And the truth remained.

Silent.

Real.

Mine.