Set Them Ablaze!
Set the North, South, East, and West Sentry Towers on fire by using the Torch of Retribution inside each of the buildings.
Listen well, $N. While the four towers can never be destroyed, you can use the torch of retribution to set them ablaze for a very long period of time: A fire that no element or force can subdue.$B$BWhile they are ablaze, no guard or sentry unit can inhabit the watch posts and thus, their first line of defense is nullified.$B$BYou must enter each tower and use the Torch of Retribution within their fortifications. Beware the lookouts posted by the Dark Irons, $N.
Required Level
40
Side
Both
Recommended Level
52
Difficulty
45
46
49
56
59
Start
End
You will be able to choose one of these rewards:
You will also receive: 
Upon completion of this quest you will gain:
- 11000 experience