The Wargs of Elderslade keep numerous skulls of the slain as grisly trophies in Valdhellir.
'I have a new mission for you, ${PLAYER}.
'My scouts have returned from Valdhellir with troubling news. It appears these Wargs are more canny than we expected! In addition to devouring those unlucky enough to cross their paths, they also keep grisly trophies in the darkened passages of Valdhellir. It is an insult to the slain and I will not allow it to stand!
'You are to travel to Valdhellir and destroy these trophies at once! For the Zhélruka! For the Gabil'akkâ!'
Your mission is to destroy collections of grisly trophies kept by the Wargs in Valdhellir.
You should talk to Hórin and travel to Valdhellir.