He might be almost forgotten now, but Mr. Oppenheim wrote an amazing 116 novels, including many bestsellers. Several are set amid the glamour of Monte Carlo, including this 1920s romantic thriller. The novel has an intriguing start, as handsome and charming Sir Hargrave Wendever gets a nasty shock from the doctor. Wealthy, handsome, intelligent, single, with the world at his feet – suddenly he fin...