For this task, Keeper Remulos' majordomo in Moonglade - Rabine Saturna - seeks aid in exploring the vast wastelands far to the west of Tanaris... and even further west of Un'Goro.  You should find him in Nighthaven, the main village of Moonglade.$B$BWhile your work will no doubt be of tremendous benefit to us all, I advise you to tread gingerly.  There are tensions between Darnassus and Moonglade... ones that may grow over the course of time.