Browse by genre
Secret service
50 books
The Riddle of the Sands
Erskine Childers
Okewood of the Secret Service
Valentine Williams
Boy Scouts in a Submarine
G. Harvey (George Harvey) Ralphson
Boy Scouts in an Airship
G. Harvey (George Harvey) Ralphson
The Boy Scout Camera Club
G. Harvey (George Harvey) Ralphson
A Rogue by Compulsion: An Affair of the Secret Service
Victor Bridges
Affair in Araby
Talbot Mundy
Whig Against Tory Or, The Military Adventures of a Shoemaker, a…
Unknown
Boy Scouts on Motorcycles
G. Harvey (George Harvey) Ralphson
The Man with the Clubfoot
Valentine Williams
Boy Scouts in the Philippines
G. Harvey (George Harvey) Ralphson
Secret armies
John L. (John Louis) Spivak
Between the Lines: Secret Service Stories Told Fifty Years After
Smith, Henry Bascom, -1916
Eagles of the Sky
Ambrose Newcomb
John Dene of Toronto: A Comedy of Whitehall
Herbert George Jenkins
The Boy Spy A substantially true record of secret service durin…
Kerbey, Joseph Orton, -1913
The Spy of the Rebellion Being a True History of the Spy System…
Allan Pinkerton
On Secret Service Detective-Mystery Stories Based on Real Cases…
William Nelson Taft
Nurse and Spy in the Union Army The Adventures and Experiences…
S. Emma E. (Sarah Emma Evelyn) Edmonds
The Radio Boys on Secret Service Duty
Gerald Breckenridge
The Red Room
William Le Queux, Cyrus Cuneo
Sant of the Secret Service: Some Revelations of Spies and Spying
William Le Queux
British Secret Service During the Great War
Nicholas Everitt
The German Spy System from Within
Anonymous, William Le Queux
Wings Over the Rockies
Ambrose Newcomb
The Sky Pilot's Great Chase
Ambrose Newcomb
Flying the Coast Skyways
Ambrose Newcomb
The Sky Detectives
Ambrose Newcomb
Trackers of the Fog Pack
Ambrose Newcomb
Spies and Secret Service The story of espionage, its main syste…
Hamil Grant
Secret Service Under Pitt
William J. (William John) Fitz-Patrick
The German Spy in America The Secret Plotting of German Spies i…
John Price Jones, Theodore Roosevelt, Roger B. Wood