The Nightmaretaker: The Man Possessed By The Devil Guide

Sarah tried to scream, but her voice was frozen in her throat. Elijah reached out a bony hand and touched her forehead, and suddenly she was transported to a realm beyond her wildest imagination. She saw the dreams of others, twisted and distorted, and she knew that she was trapped in a living nightmare.

Furthermore, Silas Vane (the human remnant) fights back. Vane hides "exit doors" inside the nightmares. These appear as out-of-place doors—a bright red door in a grey hallway, or a door painted with a white eye. Opening this door ends the visitation instantly. This is why the Nightmaretaker moves slowly. He is fighting his own possessed body. the nightmaretaker: the man possessed by the devil guide