You go through the southern door, leading you into the STAIRWELL. Well, it used to be a STAIRWELL you guess. Now it's just a huge pit leading down to the bottom of the building. The big hole now serves as your bathroom, since you can't get into your bedroom. It was a little weird at first but you've been doing it for years, and no one has ever complained, so whatever.
This room is also incredibly cold, cold enough to safely store all your weenies.