Undermountain with Shawn Merwin

Undermountain Explained: Halaster Blackcloak, the Yawning Portal & D&D's Deadliest Dungeon | Forgotten Realms Lore

Beneath the streets of Waterdeep lies Undermountain, one of the largest, deadliest, and most legendary dungeons in Dungeons & Dragons history. With 23 massive levels, ancient dwarven ruins, entire underground civilizations, and enough monsters to kill an army of adventurers, Undermountain is more than just a dungeon. It's an entire world buried beneath the Forgotten Realms.

In this episode of Roll for Lore, we dive into the history of Undermountain, from the ancient dwarven…