The Lost Courier

We're lucky we made it this far, $N. We were ambushed by Scourge as soon as we landed.$B$BOne of our men turned out to be a spy for the Cult of the Damned. Thassarian appears to have more evidence of cultist infiltration. Apparently it goes all the way to the top.$B$BI've sent one of my best couriers to our outpost in western Dragonblight, but he has not yet returned. I fear he may have fallen to the Scourge. Will you go to Dragonblight and search for him? Courier Lanson is his name.$B