New York: Harper & Brothers, 1936. First edition. Hardcover. Near Fine / Near Fine. Original tan and blue cloth with a bright and lovely example of the complete dust jacket. "First Edition" stated to the copyright page. A fascinating espionage novel set the in years prior to Great Britain's entrance into World War II. Really shows the birth of the British Secret Service and their efforts to try and keep out of any military engagement with Germany. Enemy agents abound. The cover art is really exceptional.