essentially a small room. there are four walls, although only three of which are visible. the far wall has a door leading out into the labyrinth. the right wall has a door leading to the holding headspace. both doors are impossible to look through, there's just black. there is a couch on the center right of the room. there is a giant "locker" by the left wall, essentially an iron maiden.
holding headspace
inactive parts reside here
we know that the room is a much larger room than the fronting headspace, but unaware what it looks like otherwise. it's a place for burned out headmates to relax and rebuild their strength.