Demonic Corestone (quest)

Objectives
Uncover the dreadlord hidden near the entrance to the Obsidian Dragonshrine's cave.

Description
 Yes, master. It shall be done, at the exact time that you specified. The bronze dragon will see nothing. One shot from outside the Obsidian Dragonshrine is all I require.

Completion
I'm not a big fan of dreadlords, but I think you and I can handle one if we stick together. You ready, ?