In the spirit of J.A. Jance, Nevada Barr, and C.J. Box comes Shamus Award-winning author Armstrong's sharp and gritty book about Black Ops army sniper-turned-FBI agent Mercy Gunderson and her quest for vengeance.

When a treasure hunt at a Colorado mine turns deadly for some college students in the 1920s, a park ranger works with a lady friend who's employed by the FBI to suss out the root of the trouble. With a two-week vacation so close he can feel it, Rocky Mountain National Park Ranger Timothy Grayson McIntyre is torn away from fantasies about how much fly-fishing he can fit in when he's roped into using his free time for an informal investigation as...

In the small town of Ondine, Louisiana, fourteen-year-old Iris uncovers family secrets when she conjures up the ghost of a boy missing for decades and decides to solve the mystery of his disappearance.

Big Baby plays with his toys, find the monsters at the bottom of his neighbor's new pool, finds a teen plague, and solves a mystery.