The Three Greatest Spy Novels of All Time! In one low priced ebook, read three classic edge-of-the-seat espionage tales, complete and unabridged. Mystery novelist and critic Julian Symons calls Childers' Riddle of the Sands (1903), "one of the best spy and adventure stories ever written." It should be, the author was a heroic British-Irish spy who was executed for his efforts. Oppenheim's The Great Impersonation (1919) is our publisher's personal favorite spy novel of all time, guaranteed to keep you guessing up to the amazing last chapter. Le Queux's The Czar's Spy (1905) is thrilling, romantic, and accurate. It ought to be, its author was also a British Secret agent. If you love classic thrillers, these three are among the best ever written. Don't miss them!