Undermountain is an adventure module from the RPGA Legacy of the Green Regent campaign.
A legendary manifestation known in the Delimbiyr Vale is heard singing inside the Yawning Portal of how Otar the Green Regent, whom the party has been tasked to find, is trapped in Undermountain by cyricists. Since Otar is the reason the party is in Waterdeep, they descend into the massive dungeon to find and rescue him.
|“||The most famous battlefield in which to earn a reputation as a veteran adventurer— and the best-known grave of heroes in Faerûn.||”|
|— Elminster of Shadowdale|
LGR01 Extermination • LGR02 Gray Hunt • LGR03 Key to Phantoms' Cloister • LGR04 Secret of Phantoms' Cloister • LGR05 Dark Exodus • LGR06 Epidemic • LGR07 Nurture and Nature • LGR08 Rat's Bastard • LGR09 Denial of Resource • LGR10 Into the Fallen Lands • LGR11 Humility • LGR12 Tyranny • LGR13 Book Knowledge • LGR14 Native Intelligence • LGR15 Caravan to Waterdeep • LGR16 In Cold Blood • LGR17 Tour of Duty • LGR18 Feast of the Moon • LGR19 A Difference of Opinion • LGR20 The Howling of a Mighty Storm • LGR21 The Truth of Hearts • LGR22 As Seconds Slip Away • LGR23 Strange Bedfellows • LGR24 To Sever the Snake's Head