Typically, Henty's heroes are boys of pluck in troubled times, and this is no different. Detailed research is embellished with a vivid imagination, especially in this novel set in the Punic wars, about which knowledge is limited: "...certainly we had but a hazy idea as to the merits of the struggle and knew but little of its events, for the Latin and Greek authors, which serve as the ordinary textbooks in schools, do not treat of the Punic wars. That it was a struggle for empire at first, and latterly one for existence on the part of Carthage, that Hannibal was a great and skilful general, that he defeated the Romans at Trebia, Lake Trasimenus, and Cannae, and all but took Rome, and that the Romans behaved with bad faith and great cruelty at the capture of Carthage, represents, I think, pretty nearly the sum total of our knowledge. " (from the preface)