Recently, seemingly endless hordes of undead have been surging up from the depths of the Sandswept Hall. Norden Balentiir fears that knowledge of this threat from within the Society’s own lodge would compel the Ruby Prince to permanently shut down Pathfinder operations in Osirion. The lodge’s forces are locked in constant battle with the undead, and they need an experienced strike team to descend into the Hall’s lower levels and find the source of the undead menace!

The Secluded Siege is part of the ongoing story of the Year of Shattered Sanctuaries. It is the first scenario in a two-part arc detailing the events befalling a Pathfinder Society lodge in the nation of Osirion. While the arcs can be played in any order, it is recommended that players experience the scenarios within each individual arc in order.