Espionage
The Moonstone
Said to be the first detective novel ever written, it is wonderful for its blending of the intrigues of romance with the conventional sleigh…
The Man Called X
A microfilm of the top secret "Formula H" has been stolen and three suspected scientists are flying to a Paris conference, with Ke…
Dangerous Assignment
Steve Mitchell is assigned to break up a Portuguese racket, smuggling aliens into the United States.
Man Called X
Mr. Thurson becomes involved in Cold War intrigue in Vienna when he learns of a family dispute over the control of a pro western newspaper, …
The Great Airport Mystery
The boys prepare to graduate from high school and are witnesses to a suspicious airplane emergency landing. Soon they become involved with t…