Adventure description from front page:
Drell, the peaceful and reclusive stone giant, has gone visiting some local miners in the Abbor-Alz Hills. All he finds are empty homes and signs that his friends disappeared in the middle of their daily tracks. Drell asks the help of trusted adventurers to solve this mystery: who would want to spirit away a clan of miners? A loose sequel to COR4-02 The Stone Man's Puzzle. A scenario for APLs 6 to 12.