An empty room with a single wrong piece of furniture: a bookcase in the middle of nowhere, a desk without drawers, two chairs back to back.
Testimony
“The Vestibule furnishes with whatever it grabs, so no two rooms are ever the same.”
The absurd furniture is furniture that doesn’t belong in the place. An empty room with a single wrong piece of furniture, and it takes the wanderer a second to realize something is off.
The lone chair. A chair in an empty room. In Level 1 it is a table.
The series. Identical rooms, one after another, with one that differs (the chair turned, no chair, the light dimmer or the opening shifted).
The variants
One time in six, the lone chair becomes something else:
a full-height bookcase in the middle of nowhere,
a tall filing cabinet, alone,
two chairs back to back,
a desk with no chair and no drawers.
In the series, the room that differs swaps the chair for a bookcase planted in the middle of the way half the time.
Cubicle up close: an office chair, the furniture the feature replaces
How to recognize them
None is large. It never takes up more than a meter and a half in length by sixty centimeters, and a free ring of 1.2 m always remains out to the walls and the opening. The furniture leaves the way open but makes it harder by being there. You notice it through contrast more than size.
How to survive
Don’t stand there staring. Go around it, mark the room on your map and keep moving. If you see two or three in a row, you are near the Vestibule, so check Slits in the Wall and Row of Outlets, which belong to the same place.
What people say
They say the Vestibule furnishes with whatever it has at hand, and that this is why it never repeats the combination. Nobody has found an order behind it.