Call Of Water Quest Bug

[Dalaras]

Cant complete call of water quest.
I'm having trouble completing this quest. There's a interrogation check in the bonfire but nothing happens when I click on it.

quest : (corrupt manifestation bracers part6.)

[dazzb]

Did you kill the Mob there for the bracers? The mob is invisible without using the item you got with the quest for vision of spirits. It worked fine for me yesterday on horde side deathwing.