Level 19: Caverns of Ooze - Waterdeep: Dungeon of the Mad Mage

Level 19: Caverns of Ooze. Named for the primordial ooze that flows through its naturally formed tunnels and chambers, this cavernous level of Undermountain is designed for four 15th-level characters. Those who overcome its challenges should reach 16th level. Whimsical even by Undermountain's standards, the Caverns of Ooze offer DMs the rare opportunity to sing, should they wish to portray the genies on this level in the vein of characters from an animated feature film. What Dwells Here? Halaster bound two genies to this level and pitted them against one another. The Mad Mage also captured a spelljamming vessel and deposited it here, along with its crew. Finally, the demented followers of an evil god of oozes and slimes make their home here. Genies of Earth and Water A dao and a marid live here, having struck bargains with Halaster to rid level 20 of the lich Ezzat. The genies compete with one another. Whichever one obtains the lich's phylactery wins its freedom, damning the other to spend the remainder of its existence in Undermountain. By the rules of Halaster's game, the genies can use adventurers to get the job done, but they can't cause bodily harm to one another, either directly or indirectly. A disgruntled mud mephit named Urm has been forced to act as the genies' go-between. Scavenger Crew The Mad Mage captured a spacefaring pirate ship called the Scavenger, stole the magic device that propels it, and left the derelict vessel and its crew to rot in the Caverns of Ooze. The ship's mind flayer captain (see "Captain N'ghathrod") was forced to eat the brains of several shipmates to survive. The remainder of the crew fled into the caverns and have taken refuge in the ooze-filled caverns around the ship. Now the illithid waits for new humanoid brains to deliver themselves into its waiting tentacles. Worshipers of Ghaunadaur The Caverns of Ooze have, at various times, served as a temple and sanctuary for worshipers of Ghaunadaur, the evil god of oozes, slimes, a...