I soloed this as a 62 Hunter.  My pet & I died outside the room, fighting a cloud of wasps.  When I revived, I immediately took a Partial Invisibility Potion and did NOT revive my pet.  I ran in and got the rubbing off the glyph.  When my invis. potion wore off, I was swarmed by the wasps again & died again, but that was okay because I used the spirit healer to revive and I'd finished the quest.

This is a completely ignominious way to do the quest, but it worked...