E. Phillips Oppenheim 's Books

A very well recieved series by E. Phillips Oppenheim are the books, featuring tropes. The most popular books are The World's Great Snare, Mr. Marx's Secret, The Zeppelin's Passenger, The Avenger, The Vanished Messenger, Havoc, The Wicked Marquis, The Yellow Crayon, The Malefactor, The Illustrious Prince, The Hillman, Jeanne of the Marshes, The Yellow House; Master of Men, Stolen Idols, Jacob's Ladder, Mysterious Mr. Sabin, The Great Impersonation, The Spy Paramount, 21 Greatest Spy Thrillers in One Premium Edition (Mystery & Espionage Series), which was published in 2022.