As days turned into nights, and the strange happenings continued, the prison's atmosphere turned from bad to worse.

The figure, I later learned, was known as "The Keeper." It was said to be a former prisoner who'd died within these walls, but its spirit had lingered, seeking revenge on the living.

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The air in the prison had grown thick, smelling of copper and old rot. The walls seemed to pulse, a rhythmic thrumming that felt like a heartbeat. Predondo gripped his makeshift shiv, his eyes scanning the shadows. He wasn't afraid of the other inmates anymore; he was afraid of what the prison was turning them into.