As a Fish and Wildlife police officer, Luke McCain and his partner - a yellow Lab named Jack - spend their days patrolling the rivers, lakes, and forests of the wild and scenic Cascade Mountains in Eastern Washington. After hunters discover human remains inside a bear's stomach, McCain is thrust into the investigation. As more dead women are found in McCain's region, authorities suspect a serial killer is prowling the mountains he knows best. McCain will need his knowledge as an outdoorsman, and his instincts as an investigator, to track the psychopathic predator.

New owners of a dream cottage on a remote Maine lake find themselves taunted, then menaced by an unknown figure. When the local authorities refuse to help, they turn to retired Maine game warden Charley Stevens and his young protege Mike Bowditch for protection. But Charley begins to suspect there is more to the mystery than the couple is letting on—and if he and Mike don’t act fast, the situation will explode into violence.

When a teenager arrives at a Maine hospital with a rattlesnake bite, warden Mike Bowditch is baffled. Rattlesnakes have been extinct in the region for over a hundred years—so where did this one come from? Bowditch’s investigation leads him to a pair of eccentric scientists who have a vested interest in rattlesnakes and their venom. Even more suspicious, their estranged daughter has accused them of carrying out grotesque experiments on her. As more rattlesnakes appear in the woods—and the case becomes increasingly mystifying—Bowditch finds himself running out of time to catch his exotic foe.

Set in the wilds of Maine, this is an explosive tale of an estranged son thrust into the hunt for a murderous fugitive - his own father. Game warden Mike Bowditch returns home one evening to find an alarming voice from the past on his answering machine: his father, Jack, a hard-drinking womanizer who makes his living poaching illegal game. An even more frightening call comes the next morning from the police: They are searching for the man who killed a beloved local cop the night before - and his father is their prime suspect.

When Maine game warden Mike Bowditch discovers a bullet-ridden bald eagle in the Maine woods, he is surprised by the memories it brings back for his mentor, retired warden pilot Charley Stevens. Decades earlier, Charley briefly teamed up with Mike’s father, the notorious poacher Jack Bowditch, on an unsettling case that has haunted Charley for years. The two enemies, both war veterans, found common cause over the senseless shooting of a magnificent eagle. But what started as a tentative alliance over a wildlife crime soon became something bigger and more terrifying.