Books by Paul, Frank R. (Frank Rudolph) (sorted by popularity)
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Colossus of Chaos
Nelson S. Bond
139 downloads
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A voice from the inner world
A. Hyatt Verrill
137 downloads
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Through the crater's rim
A. Hyatt Verrill
128 downloads
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Ice Planet
Carl Selwyn
126 downloads
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Monster of the Asteroid
Ray Cummings
123 downloads
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The Star-Master
Ray Cummings
120 downloads
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Cosmic Castaway
Carl Jacobi
119 downloads
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The Flame Breathers
Ray Cummings
117 downloads
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Invaders of the Forbidden Moon
Raymond Z. Gallun
114 downloads