By Allan Pinkerton

“one of the cardinal principles of my detective system, viz.: "That crime can and must be detected by the pure and honest heart obtaining a controlling power over that of the criminal." The history of the old man who, although in the possession of unlimited wealth, leaves the shores of his native land to escape the imagined dangers of assassination, and arrives in America, only to meet his death — violent and mysterious — at the hands of a trusted servant, is in all essential points a recital of actual events.”

New York: G.W. Gillingham, 1880.