The Million Dollar Bond Robbery

In Agatha Christie's short story, "The Million Dollar Bond Robbery," Poirot must prove the innocence of a young bank manager who has had a million dollars in bonds stolen from him while on a boat voyage to New York. Could it be one of his superiors? And why were the bonds being sold in New York before his ship arrived? This short story originally appeared in the May 2, 1923 issue of The Sketch magazine.