D&D5: Waterdeep - Dungeon of the Mad Mage

Explore the mega-dungeon of Undermountain in this adventure for the world’s greatest roleplaying game
The follow up to Waterdeep: Dragon Heist, Dungeon of the Mad Mage takes adventurers deep into one of D&D's biggest dungeons
Each of Undermountain's twenty-three levels is an adventure setting unto itself, and the book includes a map for each one.
Dungeon of the Mad Mage is the second of two Dungeons & Dragons books set in Waterdeep and picks up where the first, Dragon Heist, leaves off, taking characters of 5th level all the way to 20th
Waterdeep, known as the City of Splendors, is one of D&D’s most iconic locations and the jewel of the Sword Coast—a sprawling melting pot held together by firm laws and swift justice