A Clew of Worms

Objectives
Kill 15 Wastes Rockworms.
 * slain (15)

Description
While I was scouting, I noticed that most of Frostwind Crag is crawling with an odd species of worm.

The worst thing about them is that these things burrow under the ground and then spring on you from out of nowhere.

I saw the worms attacking the frost wolves and other wildlife in the wastes. I'm certain the orcs would appreciate you helping out.

Rewards
You will receive:
 * 14240 XP
 * 14240 XP

Progress
Watch your back out there. Those worms will attack when you're not looking.

Completion
We haven't seen these creatures here in a generation.

Their sudden appearance and the ground shaking are most definitely connected.