By appraising written evidence and community lore, Hamilton has created an intriguing account based on fact and documentation. But he also blends in historical fiction when required to complement the narrative in those places where events are known to have occurred but the historical sources are sparse or virtually nonexistent. Underlying Hamilton's work is his exact and familiar knowledge of early Idaho Territory, which in 1863 stretched hundreds of miles from Lewiston at the Snake-Clearwater confluence to the gold camps of Virginia City, Bannack, and beyond in what is now Montana.
Hamilton's imaginative characterizations of Magruder, Beachey, outlaw sheriff Henry Plummer, and large cast of other historical figures in Idaho, Montana, and California is based on his years of knowing many and varied peoples of the West.