well there are four types of markings. 1. tallies: probably the number of victims he's taken. (or, less likely, days spent in the room) 2. handprint: Person was here 3. scratches in the wall: Reads "your ass/soul will be mine" presumably removal of soul through ass 4. scribbles in bottom right: list of people who have survived the room with the current occupant in it.
well there are four types of markings. 1. tallies: probably the number of victims he's taken. (or,
