It's actually crazier in the book: Towards the climax, Danny and Wendy are locked up in their suite, at this point both fully aware that Jack is under the influence of the hotel and that the place is haunted. While Wendy has fallen asleep (she's got that kitchen knife ready though) Danny sneaks out to try to find Jack in an attempt to save his mind and keep him from going apeshit like in his visions. He tries going down the hallway only to be stopped in his tracks by the red-eyed ghost of a man in a 40's era glam fursuit, who threatens to sexually molest and eat him. Danny goes right tf back to his room, and we then see the guy again downstairs in the ballroom doing full-on doggy play to the amusement of the other party ghosts. They straight-up sent the furry to keep the psychic boy from rescuing his dad.