The great leader
Jim Harrison
Retired Detective Sunderson must get past his troubles with alcohol if he and an unlikely 16-year-old sidekick are ever going to expose an elusive cult leader called The Great Leader.

by Keith McCafferty (2014)
"A wonderful Montana mystery starring fly fisherman-cum-detective Sean Stranahan, for fans of C. J. Box and Craig Johnson. Wolves howl as a riderless horse returns at sunset to the Culpepper Dude Ranch in the Madison Valley. The missing woman, Nanika Martinelli, is better known as the Fly Fishing Venus, a red-haired river guide who lures clients the way dry flies draw trout. As Sheriff Martha Ettinger follows hoof tracks in the snow, she finds one of the men who has fallen under the temptress's spell impaled on the antler tine of a giant bull elk, a kill that's been claimed by a wolf pack. An accident? If not, is the killer human or animal? With painter, fly fisherman, and sometimes private detective Sean Stranahan's help, Ettinger will follow clues that point to an animal rights group called the Clan of the Three-Clawed Wolf and to their svengali master, whose eyes blaze with pagan fire. In their most dangerous adventure yet, Stranahan and Ettinger find themselves in the crossfire of wolf lovers, wolf haters, and a sister bent on revenge, and on the trail of an alpha male gone terribly wrong"--
Jim Harrison
Retired Detective Sunderson must get past his troubles with alcohol if he and an unlikely 16-year-old sidekick are ever going to expose an elusive cult leader called The Great Leader.
Howard Engel
Canadian detective Benny Coopermann is hired to keep an eye on Norbert Patten, the absolute despot of a highly suspect religious cult, the Ultimate Church. Benny follows him to Big Crummock Lake where Patten goes to escape whilst the U.S. Supreme Court investigates his finances. An unwise choice as a hide-out, for it's a part of his distant past, and now the past begins to catch up with him. And this yields a complex mystery which keeps the wily Benny guessing.
Linwood Barclay
It's been two months since PI Cal Weaver's teenage son died in a tragic accident. Cal is mired in grief, and maybe it has clouded his judgment. Because driving home one night, he makes his first big mistake. At a stoplight in the rain, a girl taps on his window and asks for a ride. Knowing it's foolish, he lets her in. Soon Cal senses that something's not right with the girl or the situation. And he decides he is going to expose it. That's his second big mistake.
David Housewright
Rushmore McKenzie is a former cop, current millionaire, and an occasional unlicensed P.I. who does favors for friends. Yet he has reservations when his girlfriend's daughter asks him to help her father Jason Truhler, the ex-husband of McKenzie's girlfriend, and a man in serious trouble. En route from St. Paul to a Canadian blues festival on Highway 61, he met a girl, blacked out, and awoke hours later in a strange motel, with the girl's murdered body on the floor. Slipping away unnoticed and heading home, he thought he'd got away -- until he started getting texts with photos of the body and demands for blackmail payments he couldn't pay. McKenzie soon finds that Truhler was set up in a modified honey trap, designed to blackmail him. But Truhler's version wasn't exactly the truth either. And McKenzie now finds himself trapped in the middle of a very dangerous game with some of the most powerful men in the state on one side and some of the deadliest on the other.