The people of Golarion are no strangers to the howl in the dark, the thing that goes bump in the night, or the icy touch of dread upon the back of the neck. Pathfinder Campaign Setting: Horror Realms explores those regions of the world where humanity ought not to tread, lore best left unlearned, and creatures whose names are synonymous with fear. Yet it is against such horrors that heroes are needed the most! This volume is a perfect companion for Pathfinder RPG Horror Adventures, and is intended for use with the Pathfinder Roleplaying Game and Pathfinder campaign setting, but can easily be used in any fantasy setting.

Inside the pages of this book, you'll find:
* Information on how the eerie corruptions introduced in Horror Adventures can be incorporated into the world of Golarion, along with details on three new corruptions to vex your players or empower your villains.
* Seven locations ripe for exploration in horror-themed campaigns, including haunted villages, islands rampant with cannibals and necromancers, and more!
* Numerous horror-themed class options for characters, including rules for corrupted animal companions, spirits from the depths of space, exploits of the sinister Outer Planes, haunting bardic performances, aberrant eidolons for summoners, and more!
* Full details on three new categories of variant haunts-incursions into this reality from the First World, miraculous resonances from the gods, and technological surges.