The PCs come upon a wrecked homestead deep in the forest. The house and barn have literally been torn to bits. Oddly enough, the wreckage appears to have caught fire at some point, but someone evidently doused the flames very quickly with water from the well. A sylvan creature that witnessed the attack reports that because the attackers came in the dark of night, it was difficult to see them clearly, but they were bigger than humans and very strong. They quickly killed the settlers, then pried apart the building plank by plank. When the embers from the kitchen fire started a blaze, the attackers immediately put it out. The brief firelight, however, revealed that most of the attackers had tall, thin silhouettes, muscular bodies, and long arms ending in big, clawed hands. Two of them had a similar build but were closer to human size. Most of them wore armor and carried weapons.
Other forest dwellers have been complaining about increased activity from trolls in the area. The trolls have in fact been competing with the local populace for game, and they seem to be brutally efficient hunters. However, they have not limited themselves to hunting game, and the leaders of the forest communities are quite concerned.
Who are these new marauders, and what do they want in such a remote area? Are the trolls that so worry the forest dwellers the same creatures that destroyed the homestead? The PCs must find the base of operations these creatures are using and root them out of it before they can overrun the entire forest.