In this Dickensian tale Jaffy, a fearless street urchin, is almost eaten by a Bengal tiger. Saved by the titular Jamrach, a jovial dealer in exotic animals who, impressed by his fearlessnes, hires him as a trainer, Jaffy meets slick talking Tim, another Jamrach protege, and his twin sister Ishbel. Tim and Jaffy become best friends. Which does not mean that their relationship is uncomplicated. The fact that Jaffy's heart is captured by Ishbel makes that a given.