Publisher's blurb:
In Call of the Shoggoth, a level-6 Shadowdark adventure, a mental city-wide mental affliction causes some people to become inescapably drawn to a cavern in the countryside that many prospectors have tried to exploit unsuccessfully in the past. The people are attracted by a mysterious gem that spells strange incantations that poison their minds and makes them susceptible to being manipulated. A terrible entity is behind the gemstone, the legendary shoggoth.
The characters must cleanse the cavern and then travel to Ord's temple. Therein, the fearsome abomination lies trapped by a soon-to-fail binding ritual. The characters must face adversity and confront the shoggoth as it breaks out of its bondage so that they can save the day. If the shoggoth breaks loose, it shall wreak havoc upon the region.