I love the setting for this adventure. The setup is GRIM indeed!!
The NPC's are a bit odd to roleplay for me but that is ok.
I love the buildup on the trail to fighting the monster which is deadly and if the PLAYERS don't play their cards right or fight strategically they make all go down.
If they do and your playing for society remember that they dont actually die in adventure mode nor do they have to spend ACP for death in adventure mode. All bounties are adventure mode. In fact IF YOU DO TPK the party this is a great moment to teach them the different things they can do instead of just swinging a sword 3 times in a row.
I disagree with the last reviewer saying that Magic Missile (CRB) AKA Force Barrage (PC1) is the answer to higher AC. There are many other unblockable things like splash damage from bombs and other spells that will do at least 1/2 damage on a successful save.
In addition you can reduce the AC of a monster by flanking, tripping, grabbing, restraining, Frightening, attacking from being hidden, etc.
This has to do more with a lack of strategy and not understanding the game. Its not 5e and it doesn't try to be.
MAKE MORE DEADLY BOUNTIES LIKE THIS ONE!!!!