Murkdeep Cavern[51.9, 40.1] is a cavern located within Vir'naal Lake in Uldum. The entrance is underwater near the village of Mar'at. Within, the Neferset are performing dark rituals in order to corrupt the waters of the Lake and Vir'naal River, blocking the ability of the to have visions. s
- Patch 4.0.3a (2010-11-23): Added.