Looking to distract herself from the grief she feels over her father's recent death, geologist Em Hansen agrees to investigate the rocky murder of fellow geologist janet Pinchon. Asked to step in by Janet's father, a powerful senator, Em travels to Northern California where Janet's body was found in a roadside ditch. Soonhired by the environmental firm where Janet worked, Em steps into her life to find some answers. But shadowed by the darkness of her own past, Em must face more than shady politicians, greedy land developers, and an endagered ecosystem. This spunky geologist must grapple with her deepest fears to survive an assault by a vengeful Mother Nature...and a killer with a heart of stone.