The Exiles of Ulduar
80 (Requires 77)
This breadcrumb is offered by Brann after completing Norgannon's Shell.
He sent his favorite servants, the iron dwarves, on a brutal campaign against all the creatures of stone. He expelled the earthen from Ulduar, forcing them to take shelter at Bouldercrag's Refuge, on the face of a mountain west of the Inventor's Library. Bouldercrag and his brethren are beset by the iron dwarves there. Find and help them, <name>.
So you know Brann Bronzebeard, then? He is our closest ally among those of the flesh. We are as brothers in the struggle against Loken and his followers, in the struggle for Ulduar.