Exploring Baba Yaga's Dancing Hut. This adventure design to test high level PCs can be used in a variety of scenarios as the DM sees fit.
The most deadly dungeon ever devised! High-level characters brave the unexplored corridors of Deepearth to confront perhaps the most feared adversary in the AD&D game. The second chapter of the Bloodstone Pass saga follows the conclusion of the desperate war against the bandit army. A cold and bitter winter drives the villagers to the edge of starvation, and numerous horrors strike the town of Bloodstone Pass. Join the adventure as the heroes explore the depths of the ancient bloostone mines, now inhabited by fearsome demons. There they hope to uncover the fantastic treasures rumored to exist in the unknown darkness. But deep within the mines, all is not what it seems.... This module uses the new rules from the Dungeoneer's Survival Guide and Wilderness Survival Guide. The adventure also includes optional BATTLESYSTEM scenarios fought entirely underground. These supplementary products are not required to play the adventure, however. TSR 9168
A mad venture across the fourth dimension. Hang onto your helmets in this topsy-turvy dungeon. Be warned that the accidental release of the Evil One (described in the text) could have devestating consequences on the PCs, not to mention the local campaign area. The DM should consider alternatives to the Evil One's powers if they are felt to be too destructive. Pgs. 32-39