Jarl Aelfric Whitehand of Jotunspine, one of the Moonshae Isles, is not happy. His ward, Cordin Wainthrower, has disappeared. Clues imply that Cordin has headed for a ruined keep deep in the Giantspine Mountains. The characters are tasked by the jarl to track down Cordin and bring him back to safety – the Giantspines are filled with many dangers including the legendary Winter King, a fey of great power. Will the characters force Cordin to return to the keep or help him in his quest to restore a family heirloom? If they help him, they must face the chilling depths of the crypt of Icegate Keep.