In the city of Waterdeep rests a tavern called the Yawning Portal, named after the gaping pit in its common room. At the bottom of this crumbling shaft is a labyrinthine dungeon shunned by all but the most daring adventurers. Known as Undermountain, this dungeon is the domain of the mad wizard Halaster Blackcloak. Long has the Mad Mage dwelt in these forlorn depths, seeding his lair with monsters, traps, and mysteries—to what end is a constant source of speculation and concern. This adventure picks up where Waterdeep: Dragon Heist leaves off, taking characters of 5th level or higher all the way to 20th level should they explore the entirety of Halaster’s home. Twenty-three levels of Undermountain are detailed herein, along with the subterranean refuge of Skullport. Treasures and secrets abound, but tread with care!

Welcome to Waterdeep! A fantastic treasure trove is yours for the taking in this adventure for the world's greatest roleplaying game. Famed explorer Volothamp Geddarm needs you to complete a simple quest. Thus begins a mad romp through the wards of Waterdeep as you uncover a villainous plot involving some of the city’s most influential figures. A grand urban caper awaits you. Pit your skill and bravado against villains the likes of which you’ve never faced before, and let the dragon hunt begin!

Duke Adrian Abdel is a living legend in the city of Baldur's Gate, and much of the city has gathered to celebrate him and his accomplishments. On tis day of festivities, though, the dukes past will finally catch up with him, with dire consequences. Murder ha returned to Baldur's Gate, and brave heroes are the city's only hope to stop the violence. Wealth flows into the city of Baldur's Gate like water. As the rich luxuriate in their mansions atop the bluff and artisans ply their trades on the steep streets, masses of poor laborers swell the slums. Money and power beget political scandal, religious fervor, crime . . . and murder. No one feels save on the rain darkened streets. Strange, foreign gods are beseeched in secret shrines. The city is rife with corruption. And through it all, the body count keeps rising. Murder in Baldur's Gate™ is a Dungeons & Dragons® Roleplaying Game adventure that can be played using the rules for 3rd Edition (v.3.5), 4th Edition, and the D&D Next playtest.