From PathfinderWiki

Source: Occult Realms, pg(s). 49

Tolbau is a small hamlet in the Ustalavic county of Ulcazar that is located near to the larger settlement of Hyannis in Versex. Tolbau is most famous for being the first place where the occult anomaly known as Herald's Fall manifested in 3944 AR. When Herald's Fall manifested, it warped Tolbau and, for a full day, the hamlet was engulfed in an enormous fog bank, black rain fell from the sky, day turned to night, and Tolbau's buildings warped into the form of terrifying beasts. During this fateful day, several villagers disappeared, never to be seen again.1


  1. Robert Brookes, et al. “Beyond Golarion” in Occult Realms, 49. Paizo Inc., 2015