We have two great novels this issue: William Le Queux’s The Rat Trap and Achmed Abdullah’s The Man on Horseback. Le Queux—often called the “Master of Mystery”—excels in this 1928 thriller. The story follows Frank Aylmer as he is drawn into a high-stakes web of international swindlers and murder—classic vintage espionage and suspense. And I cannot say enough great things about Achmed Abdullah, who is one of my favorite pul...