Quest Stages - C05 (Purity of Revenge)

10 Retrieve the fragments of Wuuthrad
Vilkas has come with me to avenge the death of Kodlak by wiping out the Silver Hand.
11 (Optional) Wipe out the Silver Hand
20 Return to Jorrvaskr
Vilkas and I avenged Kodlak's death by bringing ruin to the Silver Hand.