H. L. Sayler | The Air Ship Boys : Or, The Quest Of The Aztec Treasure

The Rover Boys On Treasure Isle Or The Strange Cruise Of The Steam

Edward Stratemeyer | The Rover Boys On Treasure Isle Or The Strange

The Rover Boys On Snowshoe Island Or The Old Lumberman's Treasure Box

The Aztec Treasure-house A Romance Of Contemporaneous Antiquity 3646

Treasure Hunters: Quest For The City Of Gold: (treasure Hunters 5)

John H. Godfrap | The Boy Aviators' Treasure Quest | Taschenbuch |

Charles Amory Beach | Air Service Boys Over The Atlantic; Or, The

The Rover Boys In The Air Or From College Campus To The Clouds

Charles Amory Beach | Air Service Boys In The Big Battle; Or,

Treasure Hunters: Quest For The City Of Gold 4872

Boarding The Ship Of Death D.h. Lawrence's Quester Heroes 6759

Kadath: Or The Dream Quest Of Randolph Carter By Cutting, Charles H.

Arthur M. Winfield | The Rover Boys In The Air Or From College Campus

H. Irving Hancock | The Grammar School Boys Of Gridley Or, Dick & Co.

Air Service Boys Over The Rhine Or Fighting Above The Clouds (1919)