Blast Him!

Objectives
Blow the Heth'Jatari Conch next to a Heth'Jatari Banner. Kill Fathom-Lord Heth'Jatar. Luring him into incoming mortar fire will help. Provided item:
 * slain
 * Heth'Jatari Conch

Description
Let's go fishing, ! Now that the mortars are ready, we can take out the leader of this invasion.

Fathom-Lord Heth'Jatar rules over the Blackscale warrior caste. Go to the Heth'Jatari Banners just northeast of here and honk this conch shell. It's like a dog-whistle. For fish.

When Heth'Jartar shows up, I'll order the mortars to concentrate fire. You'll see the targets of the incoming shells.

Lure Heth'Jatar into our mortar fire and pummel him into submission!

Rewards
You will also receive:

Progress
You want me to keep firing?

I can keep firing.

Completion
Boom baby, boom!

What? You killed the Fathom-Lord already?

I suppose we should stop shelling his corpse, then.