Dringoth is a lone Skeleton that can be located in Bone Orchard, which is a large cemetery in the southern area of Grahtwood, a region in Valenwood. He will request that the Vestige helps to find and save his friends who are also skeletons. This will then initiate a quest, Keeper of Bones.
The Vestige finds a talking skull on the ground north of the Southpoint Wayshrine. Dringoth says that Worm Cultists are creating undead in the Orchard. The Vestige ties Dringoth's skull to their belt and finds the rest of him scattered around the Orchard.