<class>, listen closely. Now that we have the location of the last amulet piece, we still need another component to suffuse the brazier with; something that will provide a focus strong enough to summon the remains of my deceased, former comrades.
The siblings, Jarien and Sothos, were believers in the way of the Scarlet Crusade. They aspired to knighthood within that vile organization. Go to Tyr's Hand in Eastern Plaguelands and retrieve a Brilliant Sword of Zealotry from the praetorians there.