UPPER DUNGEONS LEVEL THREE 61 SLOPING PASSAGE.

61 SLOPING PASSAGE. This wide corridor slopes down at a slight grade to the west. It slopes down fifty feet over one thousand feet of corridor, giving it a a grade of 0.05, and it can only be detected by gnomes, dwarves, etc. using their ability to notice grades and slopes. It leads to the Twilight Dwarves' Sublevels “House of Air” and “House of Earth”.