Path to Darkharrow

From publisher blurb:

The farming village of Darkharrow sprung up to take advantage of fertile land near the outskirts of the ancient forest called The Old Greenwood. However, a drow sorcerer who lives in the dark and mysterious woods sees the (mostly) human farmers as newcomers encroaching on a preserve that belongs to ancient races like his own. Unknown to the residents of Darkharrow, he is hatching a plan to wipe them from existence. Your party arrives in Darkharrow on what could be the eve of this peaceful community's destruction.