Mission: Kill the Messenger

Your handiwork is already causing the Legion great discomfort, $N. My scouts have just informed me that the Legion has resorted to sending communication via courier. We have successfully managed to cut their troops off from the host!$B$BWhat I ask of you next is more than I would ask of an ordinary soldier.$B$BThe Legion courier travels from the Pools of Aggonar to Forge Base: Mageddon, far north of here. You must intercept the courier at Mageddon, dispose of him, and return to me with the Legion missive.