Securing Mardum (quest)

Objectives
Use the Scouting Map and complete the mission, "Securing Mardum".
 * "Securing Mardum" mission completed

Description
There has been increased demonic activity below on Mardum. There are still demons leftover down there from when we first invaded.

To eliminate any threat to the Fel Hammer, it's time that they were destroyed.

Rewards
You will receive:
 * 15,500 XP
 * 15,500 XP

Progress
Once Mardum is secured, we can move forward without worry of being attacked from below.

Completion
Ariana Fireheart?! I thought she died the first time we were here. How horrible that she's been down there all this time. But, what an amazing survivor!

I remember her being an excellent trainer of demon hunters. We should put her talents to good use immediately.