Captain Mouen:
The road scavengers are definitely a nuisance, but hardly 'a troop of outsiders threatening our kingdom' as Ascalon says. They have been robbing travelers on the trade route connecting Oren and Kiran.
Go to the Death Pass and kill them all. This will satisfy Ascalon and get rid of our problem. You must be watchful for attacks from the Road Collectors. If you bring me 100 heads I shall write a letter describing you as the saviour of the kingdom. That should please your teacher...