This rift is known as the Worldwound, and through it, the demon horde hasinfested an entire region. While the demon armies have been held in check bybarbarians and crusaders alike, the region within that was once Sarkoris is nowruled by fiends. Worse, the Worldwound itself is slowly growing -- ifsomething isn't done to halt this blight, it and the demons it spawns may oneday swallow all of Golarion! This Pathfinder sourcebook explores the demon-blighted land of theWorldwound (site of the new Wrath of the Righteous Adventure Path) ingreat detail. Ruined cities (such as the shattered capital city of Iz, thefrozen city of Dyinglight, and the river city of Undarin), key historical sites(like the Circle of the Hierophants -- birthplace of the druidic sect knownas the Green Faith), and more are presented, along with an exhaustiveexamination of the strange and otherworldly hazards of the region. The book alsoincludes several adventure sites ready for exploration, along with a fewlocations like the holdout town of Gundrun, which can serve heroes as(relatively) safe harbor in a deadly land. Finally, an extensive bestiarypresents more than a dozen new monsters and demons and enemy NPCs along with twonew monster templates, ensuring your PCs will never lack for foes in thisdevastated realm.