Find and speak with Ezekiel of Shattrath in Shattrath City.
I believe that the dead, which we have been caring for these last 500 odd years, should be left alone. Maladaar has other plans. He has retreated to the Crypt of Remembrance to start his experiments... Necromancy.
I hope you weren't thinking about going in there... Not before helping me out so that these damned spirits will finally leave me alone. I know where they keep their treasures, [race]. Got your attention, eh?
Bring me the book of the dead, held by the Aldor, Ezekiel of Shattrath.