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 not the engine or its grisly contents that interest the people watching nearby. It is what is about to come next . 1906: For two years, the western states of America have been suffering an extraordinary crime spree: a string of bank robberies by a single man who cold- bloodedly murders any and all witnesses and then vanishes without a trace. Fed up by the depredations of the "Butcher Bandit," the U.S. government brings in the best man they can find-a tall, lean, no-nonsense detective named Isaac Bell, who has caught thieves and killers coast to coast. But Bell has never had a challenge like this one. From Arizona to Colorado to the streets of San Francisco during its calamitous earthquake and fire, he pursues what is quickly becoming clear to him is the sharpest criminal mind he has ever encountered, and the woman who seems to hold the key to the bandit's identity.