(1 - 20 of 53)
Texan spy, or, The prairie guide
Nadia, the Russian spy
Twenty boy spies, or, The secret band of Dismal Hollow
The brand of Siberia, or, The boy tracker of the Steppes
The blue mask, or, Fighting against the Czar
The spy of Spuyten Duyvil, or, The boy with a charmed life
Loyal to the last, or, Fighting for the Stars and Stripes
The Quakeress spy
The French spy, or, The fall of Montreal