The Adventures in Serendil
This ancient dungeon started as a mine and dwelling of dwarves. In the centuries since the dwarves were driven out it has been the home of drow, duergar, powerful wizards, criminal groups, and convicted felons.
The ancient dungeon itself started as a mine and dwelling of dwarves belonging to the Freytin clan that formed an alliance with the elves of Deepwood. In the centuries since the dwarves were driven out it has been the home of drow, duergar, powerful wizards, criminal groups, and convicted felons.
The most famous of those to control the halls of Undermountain was Kelzor, the Mad Mage. He and his apprentices explored the ruins and laid claim to many areas. Over the next thousand years they populated these areas with various monsters, magical experiments, numerous portals and traps, until Kelzor suddenly disappeared. The City of Waterdeep eventually started exiling convicted felons to the depths of Undermountain.
== Entrances & Exits ==
The halls of Undermountain are linked to the surface world in countless ways, both physical and magical. Halaster uses his network of portals to bring in monsters from all across Faerun to restock his dungeon. He also uses portals to draw adventurers into the deeper regions, rarely explored, and to give the occasional lucky adventurer an unexpected escape. Some of the notable physical links are described below as known by the group.
- The Yawning Portal Inn: Built atop the ruins of Halaster’s Hold, The Yawning Portal Inn contains the primary entrance into Undermountain, a large well that drops down into Undermountain’s Dungeon Level.