Bal Daelkhun is a medium-sized cave in the Telvanni Isles containing undead. The entrance is well-hidden and difficult to find. Head east from the Sadas Plantation and stay on the road as it turns south. After some distance, you will reach a hairpin turn as the road veers sharply north. At this point, head off the path to the east and search for the entrance among the boulders by its side.
Right inside the entrance are three mummies, ready to trap the unwary. A little further on there are several skeletons, who have evidently accounted for some previous adventurers, as their remains lie on the cavern floor. One of the corpses, with three arrows of wasting spark still embedded in its bones, holds A Torn Note that speaks of a chest somewhere in the cave, but the only chest to be found contains nothing but some Imperial weapons and armor. The cave's only resident, Darela Saryon carries a Dwarven Key that might have been related to the chest at some point, but which now opens nothing. Apart from a few containers of food and drink, there is little else of interest.