Air Service Boys Over the Enemy's Lines; Or, The German Spy's Secret

"Air Service Boys Over the Enemy's Lines; Or, The German Spy's Secret" by Charles Amory Beach is an adventure about young American aviators, Tom Raymond and Jack Parmly, fighting in World War I in the Lafayette Escadrille. The story kicks off as Tom and Jack, stationed at an aviation camp in France, spend time off, but they find themselves in a whirlwind of danger and duty when they discover a hidden message on a shot-down homing pigeon, revealing a possible German spy, which sets them on a mission filled with military mystery during the Great War. Against this backdrop of WWI, their heroic antics and friendship are put to the test while searching for the spy and dealing with the risks that come with warfare.