This dungeon used to be a den for the well known head hunters of Valkyra. They used to hold and torture by thirst and hunger hundreds of bandits, until they captured a wizard. Before dying, he threw a curse over this place and now the head hunters and their leader are still alive, but their bodies are getting older and older, and the flesh is falling off their bones. You can find it by exploring the field around the spawn area. Make sure that you have equipped the /kit start iron armor.