This quest is not available in game.
Speak with Zankaja in Orgrimmar.
Hmm... But, of course, that is not why you have come to speak with me.
If Gan'rul has sent you to me, it must be that you are to summon a succubus, and need an object to use for enticement.
Hmm... If you trust a blind man to lead you, <name>, then listen. In the bluffs of Orgrimmar, west of the wind rider tower, lives Zankaja. She waits for the return of her mate.
Go to her.