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(41 - 60 of 82)
The scout of '76, or, The old Dutch blunderbuss
The masked spy, or, The wild rider of the hills
The trail-hunters, or, Monowano, the Shawnee spy
Ruby Roland, the girl spy, or, Simon Kenton's protege
Eph Peters, or, The scout of the Mohawk Valley
Young Jack Harkaway in the wilds of Siberia
The boy in red, or, The czar's masked messenger
Jack Harkaway and the spy
Jack Harkaway trapped
unsolved mystery, or, Nick Carter's government case
Nick Carter and the nihilists, or, The mine under the grand duke's palace
An international conspiracy, or, Nick Carter's second assistant in a new field
Plotters against a nation, or, The mystery of the perfumed handkerchief
Mignon Duprez, the female spy, or, Patsy's fight for Adelina
A beautiful anarchist, or, Nick Carter's bravest act
The nihilist's second move, or, Nick Carter's timely interference
The brotherhood of Free Russia, or, Nick Carter's beautiful friend Olga
White House mystery, or, Nick Carter's case for the president
The great spy system, or, Nick Carter's promise to the president
The boy messenger of Russia, or, The Czar's secret despatch bearer / by Allan Arnold