Back cover write-up;

Cold Guard Castle was once the proud cornerstone of a vast empire.
Legendary treasures from across the world were brought here and secured in a vast labyrinth of dungeons. As ages passed the empire was forgotten and the castle now lies in ruins. The dungeons though are still alive.

This adventure module uses the Hanging Rock Dungeon Crawl System. An innovative new system for exploring vast webs of tunnels and halls. It does not require any new skills or character abilities. The system is realistic yest simple to manage with a set of rules for extended adventures underground.

By using a network of unique landmarks interconnected by journeys the player characters can explore countless different underground terrains. At any time one wrong step can send the party into unfamiliar tunnels that can lead to lost treasure or encounters with horrors of the dark.