In the second Carlisle Crimes Case, Courting Doubt and Darkness, Homicide Detectives Christopher Snow and Erin McCoy tail a killer who stymies the police with multiple MO's. While McCoy testifies at the trial of sisters who kidnapped her in Dying for Vengeance, Snow and Savage recover a nude body from the Letort Spring. While tracking sparse clues, another killing surfaces that rings alarms: the victims were connected. The chase leads to an active Marcellus gas well. As police tangle with hostile suspects, they are courting doubt and darkness, leaving the comfort of Carlisle to the wilds of the Raccoon Mountain. When eight-month pregnant McCoy joins the case, she discovers her Native American relatives are involved. Then she stumbles into the killer's path Join them on their journey