The bone snapped with a sound like dry twigs breaking underfoot.

Miles felt the pain bloom in his right arm, hot and immediate. He did not cry out. He was used to pain now. It was the only thing that felt real in the Gray. The mist curled around his ankles, cold and wet, smelling of wet wool and old iron. He looked at his brother. Thomas was standing ten feet away. His face was pale, drained of color, but his eyes were steady. They were holding a line. A thin, invisible line of light connected them. It was the tether. Without it, they would be lost. The Gray would swallow them whole.

Miles tried to pull the arm back to his side. It refused. The fracture locked. He gasped. The air in his lungs felt thick, like he was breathing through a wet cloth.

"Keep moving," Thomas said. His voice was low. It did not tremble.

Miles nodded. He leaned on his left leg. The right leg dragged. The pain was a white star in his vision. He focused on the gray shape ahead. It was a wall. It was a door. It was a face. The shapes in the Gray were never fixed. They shifted. They breathed.

They had been walking for days. Or hours. Time did not work here. The sky was a flat sheet of slate. There was no sun. There was no moon. There was only the mist and the things in the mist.

Miles remembered the office. The fluorescent lights. The hum of the server. He had been sitting at his desk. He had been staring at a spreadsheet. The numbers had started to move. They had swirled. The walls had dissolved. Now he was here. In the place that should not exist.

He thought about their mother. She used to tell them stories. Stories about the dark. She said the dark was not empty. It was full. It was waiting.

"Stop looking at your arm," Thomas said.

Miles looked at his brother. Thomas’s face was hard. His jaw was tight. There was a scar on his cheek. It was new. It was from the thing that had chased them through the reeds. The reeds had been black. They had whispered.

"I am fine," Miles said.

"You are not fine."

"I am fine."

Thomas said nothing. He looked ahead. The mist was thickening. The air was getting colder. Miles could feel the cold seeping into his bones. It was a deep cold. A cold that went beyond the skin.

They walked. The sound of Miles’s dragging foot was the only rhythm. Splash. Drag. Splash. Drag.

The Gray was alive. Miles could feel it watching. It was not a monster. It was not a ghost. It was a pressure. A weight. It pressed against the back of his skull. It whispered in a language he almost understood. It wanted to take them. It wanted to keep them. It wanted to make them part of the mist.

Miles had tried to fight it before. He had thrown a rock at a shadow. The shadow had caught it. The rock had turned to dust. Miles had screamed. The mist had laughed. It was a low, rumbling sound. It vibrated in his chest.

He stopped fighting. He learned to walk. He learned to breathe. He learned to ignore the whispers.

Thomas was the one who knew. Thomas had always known. He was the older brother. He was the one who read the books. He was the one who went to the library. He was the one who knew the names of the stars.

But the stars were gone.

"Where are we going?" Miles asked.

"To the center," Thomas said.

"What is in the center?"

"The end."

Miles frowned. "The end of what?"

"The end of us."

Miles felt a chill. Not the cold of the mist. A colder chill. A chill in his soul.

"Thomas," he said.

"What."

"Are we dead?"

Thomas looked at him. His eyes were dark. "I don't know."

"I think we are dead."

"No," Thomas said. "We are not dead. We are trapped."

"Is there a difference?"

"Yes."

Thomas kept walking. He did not look back. He did not care if Miles fell. He needed Miles to keep walking. The tether needed to stay strong. If Miles broke, Thomas would be alone. And alone in the Gray, you did not last long.

Miles forced his leg forward. The pain was blinding. He gritted his teeth. He thought of their father. Their father was gone. He had died when they were young. He had left them in the care of their mother. And their mother had left them in the care of the world.

The world had failed them.

Miles looked at the mist. It was swirling around him. It was reaching out. It was touching his face. It was cold. It was soft. It felt like a hand.

He shook his head. He blinked. The mist receded.

"Stay with me," Thomas said.

"I am here."

"Look at me."

Miles looked at his brother. Thomas’s face was close. His eyes were wet. He was crying. But he did not make a sound.

"I am sorry," Thomas said.

"For what?"

"For everything."

Miles did not understand. He wanted to ask. But the pain in his arm was too great. He could not think. He could only feel.

They walked for a long time. The mist did not thin. The path did not end. The pain did not fade.

Miles began to fade.

He felt his body becoming light. His fingers were numb. His toes were cold. The world was blurring at the edges. The mist was coming closer. It was wrapping around him. It was lifting him up.

"Thomas," he whispered.

Thomas stopped. He turned around. He saw Miles falling. He saw the tether stretching. It was thin as thread. It was vibrating. It was about to snap.

"No," Thomas said.

He ran. He ran toward Miles. His boots splashed in the mist. He reached for his brother. He grabbed his hand.

The tether snapped.

Miles felt the severance. It was a physical blow. He felt empty. He felt light. He was floating. The mist was rising. He was rising with it.

"Thomas," he said.

His voice was gone. It was a whisper. A ghost of a whisper.

Thomas was holding on. He was holding on with all his strength. His face was contorted. His veins were bulging. He was pulling Miles back. But Miles was gone. Miles was part of the Gray.

"Miles," Thomas screamed.

He pulled. He pulled until his muscles tore. He pulled until his blood ran.

Miles looked at his brother. He saw the love in his eyes. He saw the pain. He saw the fear.

He saw himself.

He saw the truth.

He was not dying. He was becoming.

The Gray was not a prison. It was a transformation. It was a gift.

Miles realized he had been afraid. He had been fighting. He had been resisting.

But resistance was pain. Acceptance was peace.

He looked at the mist. It was beautiful. It was endless. It was pure.

He let go.

He let go of the pain. He let go of the fear. He let go of the world.

He closed his eyes.

He felt the mist embrace him. It was warm. It was welcoming. It was home.

Thomas screamed. He screamed until his voice broke. He screamed until he could not scream anymore.

He was alone.

The mist closed over the place where Miles had been.

Thomas stood in the empty gray.

He looked at his hands. They were shaking.

He looked at the mist. It was swirling. It was waiting.

He knew what he had to do.

He knew the cost.

He stepped forward.

He stepped into the mist.

The mist swallowed him.

The Gray was silent.

The Gray was still.

The Gray was waiting.

The Gray was patient.

The Gray was alive.

The Gray was hungry.

The Gray was full.

The Gray was everything.

The Gray was nothing.

The Gray was Miles.

The Gray was Thomas.

The Gray was them.

The Gray was us.

The Gray is now.