An underground cave system exists in the Market District, accessible from the sewer system. Much of this cave was unexplored, and was accidentally discovered by Errhyas Sylramis, Usiku, Brawlin' Aldaie, Wren, and Ilma D'Allorre' as they were crawling through some dug-out tunnels from the sewer while on the trail of the source of some animated hands. Much of the area is desecrated, according to the paladin Brawlin'.
Previously, a section of the cave was covered in ice, with an arcane swirl of blue and white light in the corner. It spoke with Brawlin', but in Sylvan. The patch of ice has since dissipated, however.
The cave needs to be explored further.