OUR YOUNG AEROPLANE SCOUTS IN ENGLAND;
or, Twin Stars In the London Sky Patrol.

OUR YOUNG AEROPLANE SCOUTS IN ITALY;
or, Flying with the War Eagles of the Alps.

OUR YOUNG AEROPLANE SCOUTS AT VERDUN;
or, Driving Armored Meteors Over Flaming Battle Fronts.

OUR YOUNG AEROPLANE SCOUTS IN THE BALKANS;
or, Wearing the Red Badge of Courage Among Warring Legions.

OUR YOUNG AEROPLANE SCOUTS IN THE WAR ZONE;
or, Serving Uncle Sam in the Great Cause of the Allies.

OUR YOUNG AEROPLANE SCOUTS FIGHTING TO THE FINISH;
or Striking Hard Over the Sea for the Stars and Stripes.

OUR YOUNG AEROPLANE SCOUTS AT THE MARNE;
or, Hurrying the Huns from Allied Battle Planes.

OUR YOUNG AEROPLANE SCOUTS IN AT THE VICTORY;
or, Speedy High Flyers Smashing the Hindenburg Line.

The Boy Spies Series

These stories are based on important historical events, scenes wherein boys are prominent characters being selected. They are the romance of history, vigorously told, with careful fidelity to picturing the home life, and accurate in every particular.