The rain hits the window. It is a steady drumbeat. You are in the office. The lights are low. The air is thick with the smell of wet wool and old paper. You are alone.

Your name is Arthur. You work for the Mill. You have worked here for twenty years. The Mill is not a place for people anymore. It is a machine. It eats. It breathes. It lives in the walls.

You sit at your desk. The chair is hard. Your back aches. You hold a pen. You do not write. You look at the window. The glass is fogged. You see your reflection. It is pale. Your eyes are dark.

There is a knock.

It is not a human knock. It is a thud. Then another. The wood groans.

You stand up. Your legs feel heavy. You walk to the door. The handle is cold. You turn it.

The door opens.

There is no one outside. Only the corridor. It is long. The lights flicker. The floor is covered in a thin layer of dust. It looks like ash.

You step out.

The corridor stretches before you. It is narrow. The walls are brick. Red brick. But the red is wrong. It is too deep. It looks like dried blood.

You walk forward.

The air changes. It gets colder. You shiver. You pull your coat tighter. It does not help. The cold is inside you. It is in your bones.

You see a figure at the end of the hall.

It is small. It is hunched. It is moving away from you.

You know that shape. You have seen it before. In your dreams. In the steam.

It is the Mill.

You run.

Your shoes slip on the dust. You fall. You hit your knees. The pain is sharp. You ignore it. You get up. You keep running.

The figure stops.

It turns around.

It has no face. Only a smooth, pale surface. Like clay. Like wet mud.

It looks at you.

You cannot see its eyes. But you feel its gaze. It is heavy. It is crushing.

You back away. You bump into a wall. There is no way out. The door behind you is gone. The corridor is sealed.

The figure steps closer.

It does not walk. It flows. Its edges blur. It spreads across the floor. It climbs the walls.

You close your eyes.

You hear a voice. It is not a sound. It is a vibration in your skull.

*Join us.*

You open your eyes.

The room is gone. You are in the center of the Mill.

The machinery is everywhere. Gears the size of cars. Pistons that rise and fall like the ribs of a giant beast. The noise is deafening. It is a roar. A scream.

You are standing on a platform of iron. Below you, the gears turn. They grind metal. They grind bone.

You look at your hands.

They are changing.

Your skin is turning gray. Hard. Like iron. Your fingers are fusing. Your joints are locking.

You scream. But no sound comes out.

You try to move. You cannot. Your legs are fusing to the platform. Your feet are spreading. You are becoming part of the floor.

Pain.

It is white. It is hot. It is everything.

You see a light.

It is far away. It is a small window. High up on the wall. It is blue. It is calm.

It is the outside world.

You remember.

You remember the rain. The office. The knock.

You were not in the corridor. You were in your office. You were alone.

You look around.

You are in a small room. It is not an office. It is a cellar. The walls are stone. The air is stale.

There is a table. There is a chair. There is a lamp.

And there is a man.

He is sitting in the chair. He is old. His hair is white. His face is lined. He looks at you.

His eyes are kind. But they are sad.

"Arthur," he says.

His voice is quiet. It cuts through the silence.

You look at him. You do not know who he is. But you feel something in your chest. A warmth. A recognition.

"Who are you?" you ask.

Your voice is hoarse. It sounds like grinding stone.

The man smiles. It is a faint smile.

"I am the one who stays," he says.

He reaches out. His hand is thin. His nails are long. He touches your arm.

You flinch. You pull back.

"Do not fight it," he says.

"Fight what?"

"The change."

You look at your arm.

It is still human. It is soft. It is warm. But you can feel the vibration. It is in the walls. It is in the floor. It is in you.

The Mill is not a place. It is a feeling. It is a hunger. It wants you. It has always wanted you.

"I am dying," the man says.

You look at him. He looks frail. He looks tired.

"No," you say. "You are not."

"I am," he says. "The Mill takes its time. It eats slowly. It eats well."

He looks at the door. It is solid wood. It is locked.

"Who is it?" you ask.

"The Mill," he says. "And you."

You step back. "Me?"

"You are the boundary," he says. "You are the threshold. You hold the line. You keep the door closed."

You shake your head. "I don't understand."

"You will," he says. "When it is time."

He coughs. It is a wet sound. He spits blood onto the floor. It is black.

He reaches into his pocket. He pulls out a key. It is small. It is rusted.

"Take it," he says.

He holds it out to you.

You look at the key. You do not take it.

"If you take it," he says, "you can open the door. You can leave. You can be free."

"You are asking me to leave you?"

"I am asking you to live," he says.

"I am not leaving you."

"You have no choice. The Mill will take me tonight. I can feel it. It is in my blood. It is in my breath."

He looks at you. His eyes are bright.

"I did not want this," he says. "I wanted to stay with you. I wanted to be safe. But the Mill does not care about safety. It cares about power. It cares about the end."

You look at the key. It is cold in his hand.

"If I take it," you say, "what happens to you?"

"I become part of it," he says. "I become the wall. I become the gear. I become the hunger."

You step forward.

You take the key.

It is heavy. It feels like lead.

"I will not let you go," you say.

The man smiles. It is a sad smile.

"You must," he says. "The threshold cannot be crossed by two. One must remain. One must hold."

He stands up. He sways. He is weak.

"Go," he says.

"No."

"Arthur."

You look at him. You see the pain in his face. You see the fear. But you also see something else.

Love.

It is a strange love. It is not warm. It is not soft. It is sharp. It is cutting. It is the love of a blade. It is the love of the edge.

You understand.

You are the boundary. He is the inside. If you stay, you both fall. If you go, he falls alone.

You look at the door.

It is black. It is solid.

You put the key in the lock.

It turns.

The man watches you. He does not stop you. He does not beg you. He just watches.

He closes his eyes.

You open the door.

Light floods in.

It is blue. It is cold. It is the light of the outside world.

You step out.

Behind you, the door closes.

You hear a sound.

It is a thud.

It is the sound of a body hitting the floor.

It is the sound of a soul leaving a shell.

You do not look back.

You walk into the light.

The air is cold. It bites your face. You shiver.

You walk down the street. It is empty. The rain has stopped. The sky is clear.

You are alone.

You feel the weight of the key in your pocket. It is heavy. It is real.

You look at your hands.

They are human. They are soft. They are yours.

But you can feel the vibration.

It is in the walls of the city. It is in the ground. It is in the air.

The Mill is everywhere.

You are not free.

You are the threshold.

You walk on.

The rain begins to fall again.

It is a steady drumbeat.

You do not stop.

You cannot stop.

You are the door.

You are the line.

You are the end.

And you are the beginning.

You walk into the dark.

The Mill is waiting.

It has always been waiting.

It will always be waiting.

You are part of it now.

You are the hunger.

You are the silence.

You are the truth.

And the truth is this.

There is no good.

There is no evil.

There is only the line.

And you are on it.

You will stay on it.

Until the end.

The end is near.

The end is here.

You close your eyes.

You feel the door open.

You step through.

The light is gone.

The dark is here.

You are home.