Pathfinder Adventure Path: The Serpent's Skull Part 6 - Sanctum of the Serpent God

Presents the epic climax to "The Serpent's Skull Adventure Path", in which the heroes lead an army of savages against a threat from the underworld, face a power mad cult of snakemen, and do battle against the half-resurrected corpse of the snake god Ydersius himself. This volume contains details on the decapitated snake god Ydersius.