User blog comment:Razhel/What is Your Favorite Guild Besides FT?/@comment-15267891-20130626093404/@comment-7418318-20130626143508

Imagine it like a really massive cave system spanning half a continent big enough to house several empires of different subterranean species (Drow, Swifneblin, Duegar, Drider, Illithids, ect).

Some of those caves are even big enough to build entire cities in them.