Signal the Attack (Horde)

Objectives
Use the Attack Signal from atop one of the towers at the Twilight Gate. Provided item: Attack Signal
 * Attack signaled

Description
Now that you've lured Skullcrusher the Mountain away from the Twilight Gate, it's time to signal your forces at Crushblow to attack!

Rewards
You will receive: (or  at max level)

Completion
The horns have been sounded. Crushblow should launch their attack at any moment.

Now there's only one thing left to take care of.