Separated from their allies, Ezren the wizard and Seoni the sorceress face off against rune giants, monstrous spiders, and the deadly dangers of Hollow Mountain's amassing armies of wrath! Elsewhere in the massive dungeon, Kyra the cleric, Merisiel the rogue, and Valeros the fighter have an audience with the insidious Sinspawn King! Hollow Mountain grows deeper and darker in a tale written by Pathfinder publisher Erik Mona (Pathfinder Origins) and with art from rising star Tom Garcia. Contains pull-out poster map and official Pathfinder RPG bonus encounter!