Speak with Anastasia Hartwell.
The mages of the Undercity have noted a magical disturbance within the city, and have sent word for mages of the Horde to investigate.
Anastasia Hartwell can tell you more. Speak with her in the Magic Quarter in the Undercity.
It is true. A magical disturbance has been detected in our city. We are not yet sure of its origin, or whether it is malign or benign. We must first gather more information...
And that, <name>, brings us to your task.