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.

Philip Russell, a US Park Ranger for a small island in the Pacific Northwest, has stumbled across a dead body in the forest. Unsure if the dead woman is a local or someone from the mainland, the new female sheriff has come to Rockfish Island to find out if the community has anything still to fear. Eager to help solve the mystery, both instantly find themselves at odds with each other. Philip, defending the people he's known his whole life, and Sheriff Lane, giving no one the benefit of the doubt...not even Philip. 

When an armored car hijacking leaves two men dead, Arizona Sheriff Jim Weber takes the crime personally, because one of the dead men is his brother-in-law. His hunt for the killers leads him into a world of sordid sex, deceit, and violence, with a suspect list that includes jilted women, a family of anti-government survivalists, and the beautiful wife of the richest man in town. With a plot that has more twists and turns than an Arizona mountain road, a cast of characters you won't soon forget.

Harney County, Oregon, 1968: Nick Drake has a chest full of medals and enough demons to fill a duffel bag. He's been trained to kill but was never retrained to rejoin society. Drake flees to the lonesome high desert in search of redemption and takes a job patrolling wildlife refuges where the only conflicts are keeping out stray cows and ticketing poachers. But then he stumbles across a girl's body ritually placed in a gully. Her murder is only the beginning, and Drake must face humanity's heart of darkness once again if he's to stop a killer from turning even more gullies into graves.

Rumors have swirled around Jake Cashen his whole life. Is he crazy like his father? Is it true they booted him out of the F.B.I. right after he cracked a career-making RICO case? Was he dirty? Only Jake knows, and he’s not telling. He came back to his tiny hometown at the foot of Ohio’s Blackhand Hills to serve as a deputy sheriff. He hopes to punch a clock and keep his head down until retirement. It was a solid plan—until someone put a bullet in the head of a revered county judge.

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.

If you love mysteries with action, suspense and a touch of humor and romance, then the David Wolf series is for you.

The ancient Indian art of tracking is his greatest strength...and also his biggest weakness. Fish and wildlife state trooper Gabriel Hawke believes he’s chasing poachers. However, he comes upon a wildlife biologist standing over a body that is wearing a wolf-tracking collar. He uses master tracker skills taught to him by his Nez Perce grandfather to follow clues on the mountain. Paper trails and the whisper of rumors in the rural community where he works draws Hawke to a conclusion that he finds bitter.

Fish and Wildlife State Trooper Gabriel Hawke encounters a hunter with an illegal tag. The name on the tag belongs to the Wallowa County District Attorney and the man holding the tag isn’t the public defender. As Hawke digs to find out if the DA is corrupt, the hunter’s body is found. Zeroing in on the DA, Hawke finds he has more suspects than the DA and more deaths than the hunter.

A lifeless girl slips into the river, cold and crumpled. Her body washes away with the rain. Her killer remains a mystery. Sheriff Elven Hallie has been longing for a new case that would add some excitement to his small-town life. But a dead girl wasn’t what he expected. On the last murder case he worked, he was just a deputy with an experienced Sheriff to guide him and they were looking for an outsider. This time, he’s in charge, and the killer is part of their community.