Waterdeep Dungeon of the Mad Mage

Continue the adventure that began in Waterdeep Dragon Heist here! The creation of The Mad Mage Halaster, Undermountain, was first introduced to the Dungeons and Dragons community in a boxed set in 1991. Here it is presented in all it's maddening glory for the 5th edition ruleset. Can be played alone or as a continuation of Dragon Heist. Will take your players from level 5-20 or find them lost, or worse, somewhere in the 23(maybe more) levels deep that is Undermountain! This book is brand new and unused!