From the back cover.
Nine dangerous deities for RuneQuest role-playing
The bad guys of Glorantha: nine cults of the cruel and unusual, destined to enliven every campaign. Cults include Primal Chaos, Mallia, Bagog, thed, Vivamort, Thanatar, The Crimson Bat, Krarsht, and Nysalor/Gbaji. Each cult has described cult myths, history, requirements for lay, initiate and RuneMaster membership, subservient and associate cults, and miscellaneous notes.