Rumor is that Tabetha, a mage colleague who lives deep in Dustwallow Marsh, has a bone to pick with a certain sand troll in Zul'Farrak. If you speak with Tabetha she can tell you more. And bring some friends with you, adventurer. If Tabetha has you go to Zul'Farrak then you're not going to want to go alone. You will find Tabetha's cottage west of Theramore, and just north of the Stonemaul Ruin.