Deception by Patricia Bradley
Madison is an investigator for the Park Service. She made the move from violent crimes to white collar after a tragic incident. While working a case near her hometown, she becomes involved in a case involving a violent attack. Family secrets come to light as she investigates and her grandfather has something to tell her that looks like it will tie to the case, but he too is attacked before he can say anything. Madison has to decide who she can trust and how to work with a childhood friend and fellow Ranger to find out what is really going on.