Well I recently played through Hour X and noticed that the little room beneath the stairs (in the Stairs Hallway) has opened. So my question is: Does anything happen in that room?
If that's the case: Are there any other tiny rooms (you hardly ever notice), where something strange happens (like the one in PZ2, where Chitose wrote on the wall)? Or did you notice anything supernatural - besides the ghosts of course - somewhere else? I'm not a big secret finder, so share your experiences.