When two girls disappear on a remote stretch of Montana road, former police investigator Cody Hoyt and his former rookie partner Cassie Dewell begin an investigation that will lead them into the hunting ground for a killer whose viciousness is outmatched only by his intelligence.

Drawn to a Montana homestead and to a strange childhood companion she'd long forgotten, Joanna Chase and others converge on this remote ranch where a madman lurks with a vision to save the future through murder, forcing them all to come together to save themselves--and humanity.

"The return of Cassie Dewell in Treasure State, the latest in the series that inspired the ABC hit series Big Sky, finds Cassie in Montana on the trail of a con man. Investigator Cassie Dewell--now the lead character in this year's most sensational TV crime show, Big Sky, from Big Little Lies creator David E. Kelley--is headed to Anaconda, Montana, in search of a slippery con man who has disappeared somewhere in the "treasure state". A wealthy California...

An earthquake shakes Montana, unearthing old bones and new trouble Usually it takes more than one beer to make the Toussaint bar shake. When the earthquake hits, part-time deputy Gabriel Du Pré and his friends are lamenting the fishing resort a Japanese firm has planned for their small town. The floor shakes, the lights go out, and glass rains from the walls. When they emerge from the bar, they see a new landscape. Roads are mangled, mountains have...

Newly married and with a baby on the way, Trey Calder makes a shocking discovery about his wife, freelance photographer Sloan Davis, that places his family in the path of a dangerous enemy who is out for revenge.