Objectives
Use the Extra-Dimensional Ghost Revealer at the entrance to Stratholme and speak with the ghost of Anthion Harmon.
Provided: 
Extra-Dimensional Ghost Revealer
Description
Well, nothing left for us to do but try out the goblin's invention. Word has it that Anthion was mowed down by the undead legions of Stratholme as he tried to enter its gates.
Try using the device there and find out whatever Anthion knew.
Completion
Deliana had you contact me? I'll do my best to help you, but first I must ask a great favor of you.