At Room 810, the player enters a two-story Victorian-styled mansion (that is Specimen 12). According to the notes scattered about, there is a commotion going on below the kitchen. There are also hints of what seems to be a man chasing after the note writer. There is a wine storage room, piano room, kitchen, two hallways, a library, and two bedrooms, all of which can be explored by the player. Once the player can hear The Old Man (possessed by Specimen 12), they must hide using the local objects. They must eventually find the key to the underground room, where the final exit room key can be found. After escaping the room that you get the key from, The Possessed One continues to chase the player like the other Specimens.