The Underdark

The Underdark, also known as the deepearth or the Veins, are a network of tunnels beneath the surface of the world. According to the old tales, the infinite passages of the Underdark were tunneled by the cursed god Torog, the King that Crawls. The Underdark even spreads into other realms where the barriers between worlds are thin.

The Underdark

Chronicles of Khaldun: Crux of Eternity PsychicMayhem