From PathfinderWiki

The Spiritscar is an enormous, trench-like rift located in the northern hills of Kaoling in Tian Xia. Over seven miles long and nearly 800 feet deep, Spiritscar was once the location of a monastery dedicated to Lady Nanbyo, the Widow of Suffering. Dating back to the days of Imperial Lung Wa, even before the formation of the rift, the area that would become the Spiritscar had long been associated with misery. When the hobgoblin forces first attacked the monastery, the cultists of Lady Nanbyo triggered a massive earthquake that destroyed everyone and created the current rift, now the Spiritscar is haunted by the ghosts of both the cultists and the hobgoblin army that attacked them.1


  1. James Jacobs, et al. “Regions of the Dragon Empires” in Dragon Empires Gazetteer, 28. Paizo Inc., 2011