Breach in the Defenses

Objectives
Find the source of the Twilight's Hammer in the Vermillion Redoubt and destroy it. Provided item: Flashgrowth Mote
 * Twilight Portal destroyed

Description
Every inch of air and every hill surrounding the redoubt is constantly under the watchful eye of Lira's drakes. They must have found a way into the shrine from beneath.

Take this Flashgrowth mote. It should prove more than sufficient to close any hole, tunnel, or portal they might have used to get inside our defenses.

Find the breach in our defenses. Close it.

Rewards
You will also receive: (or  at max level)

Progress
Did you find the breach?

Completion
Well done. Thank you,.

I will not be so foolish as to let such an oversight happen again.