Maize and Monsters (S&W)

From the publishers blurb:

Maize and Monsters is an adventure, that exposes the adventurers to the grim reality that time sometimes exacerbates old wounds rather than healing them. A recent murder in the village of Pilhua proves to be far more than a simple crime of passion as the seeds for this killing were sown during a previous, unsolved mystery that still haunts some residents within the settlement. The characters must wade through a list of suspects and motives that lead them to discover the ugly truth about a heinous crime that spawned a greater evil than even its perpetrators could ever imagine.