From the back cover:
Murder, mayhem, and abduction! After the Keltic village of Dunwich is victimized by the vhuurmis, degenerate quasi-men covered in umber-colored fir, local druids offer land and title to those brave souls who would repair the situation. The vhuurmis are considered witless savages, seemingly incapable of organized incursions, but these particular brutes attacked with purpose and precision, taking men from Dunwich, and slaying any who opposed their black will.
Designed for 4-6 characters of 4th-7th levels.