Idaris bint Qumal

 Idaris bint Qumal tells you, "Come to prove yourself to the Society, have you? Good, I'm always pleased to see eager young acolytes.  What you can do for me is venture into the Empyrean Graveyard in the Direlands and kill 12 Wight Blade Sorcerers.  The creatures are proving to be an... impediment to some of the research we are conducting out there.  Don't worry your pretty little head about what we're doing.  Just concern yourself with killing 12 Wight Blade Sorcerers, and report back to me when you're done."