Threshold Pits
From UnderlightWiki
The Pits are an interesting assortment of rooms and mazes, waterfalls and staircases. A dueling arena, teaching halls, meeting halls, and spiral staircases are there among other assorted rooms. It is accessible via the Library of Idoaclese as well as the two hallways between the Mt. Illapse and Edgeward Barrows thresholds and between the Valley of Totality and Evernight Plateau thresholds.
