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H. L. (Harry Lincoln) Sayler Audiobooks
On the Edge of the Arctic; Or, An Aeroplane in Snowland
by H. L. (Harry Lincoln) Sayler
The Blind Lion of the Congo
by H. L. (Harry Lincoln) Sayler, Elliott Whitney
A Cruise in the Sky; or, The Legend of the Great Pink Pearl
by H. L. (Harry Lincoln) Sayler
The Boy Aeronauts' Club; or, Flying for Fun
by H. L. (Harry Lincoln) Sayler
When Scout Meets Scout; or, The Aeroplane Spy
by H. L. (Harry Lincoln) Sayler
The Air Ship Boys : Or, the Quest of the Aztec Treasure
by H. L. (Harry Lincoln) Sayler
Battling the Bighorn; or, The Aeroplane in the Rockies
by H. L. (Harry Lincoln) Sayler
The Stolen Aeroplane; or, How Bud Wilson Made Good
by H. L. (Harry Lincoln) Sayler
The Airship Boys' Ocean Flyer; Or, New York to London in Twelve Hours
by H. L. (Harry Lincoln) Sayler
The Aeroplane Express; or, The Boy Aeronaut's Grit
by H. L. (Harry Lincoln) Sayler
In the Clouds for Uncle Sam; or, Morey Marshall of the Signal Corps
by H. L. (Harry Lincoln) Sayler