The Ghosts of Zoazanna Mountain is a module for OSE, written and lavishly illustrated by Tuomas Vauhkonen. Do you dare discover the secrets of Zoazanna?

A mega-dungeon that supports a full-year campaign. A legendary adventure considered by many to be one of the greatest of all time! Explore a thousand-year-old dungeon mystery waiting to be solved...

Make every encounter, adventure, and even campaign more engaging, memorable, and fun. From legendary D&D designer Monte Cook!