Greyhawk: The Undead
The Vesve Forest is the largest hardwood forest in all of the Flanaess. Its southern half, as well the strip which borders the Sepia Uplands and Clatspurs (Highvale) down to Highfolk Town are relatively free of baneful creatures, although inhabited by a fair share of predators.
Since the resurgence of Iuz, the north-eastern quarter of the forest is filled with hateful settlements of evil humanoids, and these tribes and bands press everywhere upon human and demihuman folk elsewhere in these woodlands. Rangers and light troops from Furyondy aid the Highfolk in organized expeditions to check the influx of humanoids and drive them out, but fresh hords from the spawning grounds of Iuz are apparently endlessly available to replace those slaughtered. The Vesve forest is of critical importance in the future of the Flanaess. Iuz refuses to yeild claim to it.