Kill 7 Boulderfist Shaman and 3 Boulderfist Lords and return to Drum Fel in the Hammerfall outpost.
The head of the beast is ready to be taken off... with great force, [player]. You have shown every sign that you are able to help us with this final mighty blow. The leaders of these attacks have made their lair within the ruins of Stromgarde, a glaring symbol of human frailty.
Find and slay those Boulderfist lords and their lackey shaman who would try and drive us from these lands.