"Oklahoma 1909. Eleven-year-old Olive Augusta Radley knows that her stepfather doesn't have good intentions toward the two Choctaw girls boarded in their home as wards. When the older girl disappears, Ollie flees to the woods, taking six-year-old Nessa with her. Together they begin a perilous journey to the rugged Winding Stair Mountains, the notorious territory of outlaws, treasure hunters, and desperate men. Along the way, Ollie and Nessa form an...

When four young seasonal park employees at Yosemite National Park mysteriously vanish without a trace, Anna Pigeon is sent in to work undercover at the park's historical Ahwahnee Hotel to uncover the truth.

While studying grizzly bears in Waterton/Glacier National Peace Park on the border of Montana and Canada, ranger Anna Pigeon finds herself in the midst of a series of deadly bear attacks that leave her struggling to re-evaluate her own view of nature.

Running from a proposal of marriage from Sheriff Paul Davidson, Anna Pigeon takes a post as a temporary supervisory ranger on remote Garden Key in Dry Tortugas National Park, a small grouping of tiny islands in a natural harbor seventy miles off Key West. This island paradise has secrets it would keep; not just in the present, but in shadows from its gritty past, when it served as a prison for the Lincoln conspirators during and after the Civil War....

"Anna Pigeon, in her career as a National Park Service Ranger, has had to deal with all manner of crimes and misdemeanors, but cyber-bullying and stalking is a new one. The target is Elizabeth, the adopted teenage daughter of her friend Heath Jarrod. Elizabeth is driven to despair by the disgusting rumors spreading online and bullying texts. Until, one day, Heath finds her daughter Elizabeth in the midst of an unsuccessful suicide attempt. And then...