Underdark

The Underdark is home to many subterranean creatures and peoples.

Deepshade
Deepshade is a series of caverns composing the Underdark beneath Undershade Downs. Home, to Drow mostly,  but also a city for duergar, svirfneblin, and derro respectively. The oldest settlement is Xalanethurein, a drow city that was mostly destroyed during the cataclysm that created the Mirror 4,500 years ago. A magically shield save a small portion of the city from flooding. The city has many houses still that worship a variety of deities, only about half evil. Lolth fell heavily out of popularity after the destruction and considering the difficulty of beings from other planes coming to the Four Realms, which Lolth’s religion relies heavily on, most turned from the dark goddess. The Drow Pantheon, and Corellon even, saw revived worship here. A large quantity of Sunwrought is in deep parts of Deepshade but the drow and other species of the underdark find little use for the bright stone.