The underdark is a subterranean wonderland a vast and twisted labyrinth where fear reigns it is the home of horrific monsters that have never seen the light of day it is here that the dark elf gromph baenre archmage of menzoberranzan casts a foul spell meant to ignite a magical energy that suffuses the underdark and tears open portals to the demonic abyss what steps through surprises even him and from that moment on the insanity that pervades the underdark escalates and threatens to shak