Dealing With Gjalerbron (Horde)

Objectives
Chieftain Ashtotem has asked you to kill 15 Gjalerbron Warriors, 8 Gjalerbron Rune-casters, and 8 Gjalerbron Sleep-watchers. Afterward, return to him at Camp Winterhoof.
 * Gjalerbron Warrior slain: (15)
 * Gjalerbron Rune-Caster slain (8)
 * Gjalerbron Sleep-Watcher: slain: (8)

Description
My longrunners that have lived to return have informed me that the vrykul have awakened at their main fortress to the west.

It is a forbidden place known as Gjalerbron. The longrunners tell me that the vrykul are performing strange rituals.

We cannot allow this to continue.

Are you willing to continue to assist us? Will you kill the vrykul at Gjalerbron before they finish whatever they are doing and attack us here?

Rewards
You will receive:

Completion
You have my thanks,. I know that you do not have any duty to me or my people.

What you say about that place troubles me still, and I sense that our culling is not quite at an end.