Aaron came to learn what was happening, at least what was happening in the fort.
He learned that many powerful professionals are gearing up and would be leaving on a mission, and the destination was nowhere near the fort.
Though he was unable to learn their destination, he was quite happy that many powerful professionals were leaving the fort. Though it might decrease the security of the fort, which would be bad if anything happens when they are away, like what happened a few months ago when the monster horde appeared and destroyed the fort.
It took quite a while to reclaim the region and rebuild the fort. Only after that did the region see peace once again, though peace here is a loose term.
Ignoring that possible dangerous event, which is not very likely to repeat so close, Aaron has a wonderful chance here.