Mind the Gap

Objectives
Kill Keli'dan the Breaker and return to Caza'rez.
 * Keli'dan the Breaker slain

Description
In all of the Blood Furnace, there is one area where our scryers cannot reach despite their efforts.

This 'gap', as they've been calling it, is fairly large, and must be where Magtheridon is being held captive..

You must find the source of the interference and dispose of it.

Rewards
You will also receive:
 * 20800 XP
 * 350 reputation with Thrallmar
 * 350 reputation with Thrallmar

Progress
Yes? What is it?

Completion
The interference has gone down, but we still cannot access that area. We will continue to investigate the matter. Thank you for your help.