Acidian
All that lays on the surface eventually trickles down below. That is also the case with the plagued hellscape of Nergulum. Far below the surface exist large lakes of acid, where only a few dare to wonder. But as strange as it is, some still decide to live there. For outsiders their cities are both monoliths of horror and amazement. The folk of the acid lakes live in stone towns that hang from the ceilings of those deadly caves. Prolonged stay at the lake has warped the bodies of the people that live there. Thier skin has turned to shades of greens and browns and erodes any metal that stays in contact for too long.