The bodies left behind - Jeffery Deaver

You can run. You can hide. But you can't escape...A distant lake house in Wisconsin. A call to police emergency is cut short. A phone glitch, or something more sinister? Off-duty deputy Brynn McKenzie goes to find out - and stumbles onto the scene of a murder. Before she can call for backup, she finds herself the next potential victim. Deprived of her phone, weapon and car, Brynn flees, along with the only survivor of the crime. These unlikely allies can only survive by escaping into the dense, deserted woods, on a desperate trek to safety, and ultimately a life or death choice. Flight. Or fight?