Talk to Swar'jan
Talk to Swar'jan is a Horde-only quest for level 15-30 in Feralas. It is step 29 of 68 in the Feralas storyline. The quest's turn-in marker is in Feralas at 51.9, 46.7. It rewards 2,050 experience and money.
Description
We're lucky and unlucky here, grunt. Lucky that I had you bother to bring this back, and unlucky that my suspicions turned out to hold water. This thing's full of corrupted stench.
It's far too new to be something fished out of the ruins, either. Someone is supplying these ogres, and we need to know who before this becomes a situation.
Get that filthy thing upstairs to Swar'jan, the warlock on top of the guard tower. He's good for a few ideas; I'd listen to his suggestions, if I were you.
