From publisher blurb:
Purple Mountain II: Ruins of the Dwarven Delve is a Pathfinder Roleplaying Game compatible module designed for four 2nd-level characters that uses the medium XP advancement track. Play it in any campaign setting with a mountain-based megadungeon, or as a stand-alone dungeon with a mega-dungeon feel. Included are guidelines for linking it to "Purple Mountain I: Temple of the Locust Lord" as well as for introducing this level on its own, a new undead, and multiple NPCs.
Purple Mountain II: Ruins of the Dwarven Delve throws your party into a ruined dwarven settlement haunted by the restless dead, insidious fungi, sadistic fey, and more. Devious mechanisms bar the way and the delve's strange, feuding inhabitants loom on all sides while the party search for the valuable secrets of the ruins.