Bring Karnitol's Satchel to Roetten Stonehammer in Ironforge.
Take Karnitol's things back to Roetten in Ironforge and he'll pay you for a job well done.
Haha, if you're not careful, he's gonna be so pleased with ya that he'll ask you to join us full time.
Again, great job, [player].
Be careful on your way back, and don't take too much time--Karnitol's not the most of patient of men, but he's very generous nonetheless.