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Dick Merriwell, diplomat, or, The stolen state paper
Nadia, the Russian spy
Bonny, the Dutch dame, or, The alderman's little protegee
The Quakeress spy
The scout of '76, or, The old Dutch blunderbuss
The trail-hunters, or, Monowano, the Shawnee spy
Ruby Roland, the girl spy, or, Simon Kenton's protege
The brigantine, or, Admiral Lowe's last cruise