Timberscar Hollow is a large, single-level cave in central Nibenay Basin, north of Niben Bay. It is the home of the Rock Biter goblin clan. The clan is at war with the Bloody Hand goblin clan at Cracked Wood Cave and the fighting has prevented settlers from finishing their homestead at Cropsford. The cave appears to have once been an Ayleid structure, based on arches and support columns throughout the cave. There are not much of value in the chests found.