The Seven Conundrums

Edward Phillips Oppenheim (1866–1946) was a prolific British author of thriller and espionage novels, credited with pioneering the spy fiction genre. Born in London, Oppenheim's literary career spanned over 60 years during which he wrote more than 100 novels and numerous short stories. His writing is characterized by a blend of suspense, romance, and international intrigue, often featuring sophist...