"Cass County, Minnesota: A sheriff's deputy steps out of a diner on a rainy summer evening, and a few minutes later, he's lying dead in the mud. When BCA agent Kirk Stevens arrives on the scene, he finds that local authorities have taken into custody a single suspect: a hysterical young woman found sitting by the body, holding the deputy's own gun. She has no ID, speaks no English. A mystery woman. The mystery only deepens from there, as Stevens and...

"She was a forgotten girl, a runaway found murdered on the High Line train through the northern Rocky Mountains and, with little local interest, put into a dead file. But she was not alone. When Kirk Stevens and Carla Windermere of the joint FBI-BCA violent crime force stumble upon the case, they discover a horror far greater than anyone expected--a string of murders on the High Line, all of them young women drifters whom no one would notice. But...