Serpent folk cleric
Yarzoth was origionally disguised as Ieana while on board the Jenivere. It was she who seduced the captain, poisoned the PC’s and crew, and had the ship crash on the island. She and the captain made their own camp and then made their way across the island to the cannibal camp where she discovered the temple of blood. Along the way, she left the captain to die and become a wight.
When the PC’s found her, she was studying ruins in an attempt to get to the lost city. Through some meta gaming, the PC’s realized that Yarzoth was attempting to possess Skank and disrupted her instead of attacking the more immediate but ultimately less important threat of the 4 skeletons. The fight was then unremarkable, and Yarzoth died.