Garren at Amber Ledge wants you to use the Arcanometer at the Sundered Chasm anomaly and return to him with the readings.
Provided Item:
The following spell will be cast on you:
Description
Did you feel that?! That was just an aftershock... you should've been here a few minutes ago!
I'm afraid I must call upon your services again. My instruments indicate that there is an immense disruption just west of here, far beneath the water's surface.
Just as before, I need you to take the arcanometer and capture the anomaly's data.
I'll cast a spell that will enable you to breathe underwater. If it wears off before you find it, come let me know and I'll renew its effects.
Reward
Also, you get:
3 70
Progress
Well, <class>?
Were you able to locate the anomaly?
Completion
It was how big?
That's impossible! I need to report to Dalaran at once!
Gains
Upon completion of this quest you will gain:
Additional Information
