This quest was marked obsolete by Blizzard and cannot be obtained or completed.
Primal Torntusk at Revantusk Village in the Hinterlands wants you to recover 5 Vessels of Tainted Blood from Jintha'alor. Return to Primal Torntusk when this task is complete.
The dark energy that compels the Vilebranch has been lifted - for now. We must remain ever vigilant in our battle against evil, as even if the Vile Priestess is destroyed, another soon takes her place.