In Rob Kresge's third entry in the Warbonnet historical mystery series mysterious deaths follow Russian Grand Duke Alexis on his goodwill visit to America, from New York harbor, to Chicago, and the rolling plains of Wyoming. Marshal Monday Malone and special deputy Kate Shaw board the royal train and try to identify a killer. Which passengers will help them, hinder them, perhaps even harm them? When the killer strikes again, in a locked compartment aboard the Duke's swbound train, hunting guides provided by the Army-Buffalo Bill Cody and George Armstrong Custer-offer their help. But are they allies or suspects?