Gaming legend Monte Cook comes to the Pathfinder Roleplaying Gamewith his first published adventure design in years! The heroes unearth an ancient ritual in a treasure horde that promises powerand fortune. The only trouble is, they need a wizard with giantish blood to helpthem complete it! Venturing to a forlorn cloud giant castle to gain themuch-needed aid, the heroes become embroiled in giantish intrigue when theydiscover the wizard's fortress under assault by hill giants! Will unraveling thegiant wizard's hidden past convince him to aid their cause, or will it simplybring misfortune, betrayal, and death? Curse of the Riven Sky is a Pathfinder Roleplaying Gameadventure for 10th-level characters.