The final of the sigils needed to unlock the tomb of Thoras Trollbane is held by his son personally. He resides deep within Stromgarde, in a chapel in the militia-held districts. Prince Galen is well protected and no slouch of a warrior himself, so this task could prove most difficult.
Quite a day this is, <class>. The blood of Trollbane will no longer haunt my people, and the sigils needed to take Trol'kalar are in our possession. Soon, very soon, we will strike against the hated trolls of Zul'Gurub.