Mission: End All, Be All

Do you know what would have happened if you had not intercepted this missive, $N?$B$B<Danath nods.>$B$BThe entirety of the Legion army in Hellfire would have been knocking on our door. There is no way that we could have survived such an assault.$B$BThere is only one way to make sure that these orders never reach the Legion Front. You must travel to the Pools of Aggonar, far northwest of here, and slay this Arazzius creature.$B$BDo this and I will grant you a commendation.