With intricate plotting, dazzling set pieces and not one, but two, extraordinary villains, this is one of the wildest, most entertaining historical thrillers in years. April 1950: The rusting hulk of a steam locomotive rises from the deep waters of a Montana lake. Inside is all that remains of three men who died forty-four years before. But it is neither the engine nor its grisly contents that interest the people watching nearby. It is what is about to come next ...