For 65 million years, the Badlands of Montana have held a secret hidden in their depths?a creature worshipped by some, held in awe by many, and despised by a secret few. Revealing its existence would irrevocably change the way humans view their connection with history and religion, blurring the lines between fact and mythology.

The Pirates of Montana follows Molly Tanner, a 15-year-old aspiring paleontologist who travels to Montana to learn the intricacies of finding, unearthing, and preparing dinosaur specimens. But when she discovers what appears to be a winged, flesh-eating...