D&D 5.5 - The Caverns of Tiekneg

The Caverns of Tiekneg A D&D 5.5e Campaign Adventure
What starts as a simple mine-clearing job quickly unravels into something far more dangerous. Beneath the tunnels lies a vast, sprawling underworld filled with ancient ruins, hostile factions, and secrets that were meant to stay buried. Somewhere in the deepest dark, a mysterious artifact waits, and more than one force is willing to kill to reach it first.
Inspired by the classic 2nd Edition megadungeon "The Night Below," The Caverns of Tiekneg brings old-school exploration and discovery to the modern 5.5e ruleset. Come for the dungeon crawl, stay for what's lurking below it.