The Basement is a large verse that contains many Kentometaverses of varying sizes. It is so large that it contains the Le Jorino Area, so it could very strictly be classed as a non-verse but in almost every other way it is a verse. It is unexpectedly stable for a 7th-class Post-Texa, being about as stable as the Grey Ring. Because of this, about 2 billion people of differing species (40% Dave, 19% Qwerty, 12% Isosceles, 18% Scalene, 8% human, 2% Ska Robot, and 1% other) live in the Basement.
It is also home to a mysterious entity.