REPORT You tell Gryan whatever you care to of what's going on in Westfall. He doesn't want to hear it. He starts babbling about being personally capable of solving the threat to the Kingdom, despite telling you the opposite when you first came. This turns out to be a façade for his actual reasoning: He says the King can't know what's going on or, after a long string of excuses, Gryan reluctantly explains that, if the King finds out, then the leader of Westfall, namely Gryan, will likely be relieved of command due to apparently mishandling the situation. You have definitely seen this happen before. The only legal solution is to report this to the King, who is apalled to hear what has befallen his citizens in Westfall and takes a trip there to personally defeat the threats there. Gryan is embarrassed, but doesn't face the legal consequences he would if he kept this in the dark for longer or had a less forgiving King. More importantly, Westfall is safe.
Mission accomplished.