Welcome,o distinguished traders to the Great Market of Ushart! Here you will want for nothing when it comes to the exotic and wonderous!
Just mind that you have a strong stomach…
Suffused with a love for probing every inch of the darkest and most unexplored depths of the ocean,this adventurous octopus like being possesses a dashing courage most odd for one of his race.
Not very surprising perhaps,when you consider the fact that this young explorer is insane.
The local band of 'nasties' (goblins / orcs / whatever) lives in relative peace with the local population.
Along come the PCs and go through their usual heroic monster bashing routine, wiping out the nasties and pinching all their stuff, then continue on their way.
Problem is, they don't kill ALL he nasties. The survivors want revenge and, after spending a few months recovering, start to take it in their own inimitable style (which is not unlike that of the PCs come to think of it).
Next time the PCs are in the area they find themselves VERY unpopular with the townsfolk.