This quest is not available in game.
Speak with Balthule Shadowstrike near the Tower of Althalaxx.
Before confronting Athrikus, it would probably be wise for you to consult with Balthule. I have no doubt he has been vigilant in his watch of the Tower, and he may have information about recent developments.
You will also receive:
- 570 experience
- 3 30 (if completed at level 90)
- 25 reputation with Darnassus