Publisher's blurb:
The world-renowned Blakros Museum has outdone itself, gathering an unrivaled collection of relics from the Shining Crusade, a holy coalition that felled the greatest lich to threaten Golarion. When trouble befalls the exhibit mere days before its debut, the Pathfinders intervene, only to discover that one of the relics is key to averting a far greater disaster that has laid in wait for a millennium.
The story continues, first taking the Pathfinder Society into the frozen north to complete a fallen hero's unfinished business and vanquish a powerful foe that rules from the icy Tusk Mountains. In order to earn the favor of a powerful celestial being and destroy a sinister curse, the Society's agents then travel to Lastwall's tangled Fangwood.