An American woman circus rider impersonates a fellow passenger when the ship carrying them both and their husbands to England sinks. She is unknown to the heiress' husband's titled family, and in her disguise wins the love of the new heir, but is exposed on the very day they are to marry. She leaves with her true husband who had survived the shipwreck but is deserted by him and returns to the circus ring where she eventually dies in the arms of the English lord when their paths cross in Mexico! Lightly exotic; interesting for its description of the distinctions between refined English manners style. (Counterpointed by the equestrienne's base English husband.) (PB)