David Franklin Powell
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The Wolf-Men: A Tale of Amazing Adventure in the Under-World
David Franklin Powell
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20 Sci-Fi Adventure Novels
David Franklin Powell
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In Search of the Great Unknown: 20 Science-Fiction Adventures
David Franklin Powell
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20+ Vintage Sci-Fi Novels
David Franklin Powell
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In the Dawn of Science Fiction: 22 Groundbreaking Novels
David Franklin Powell
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The Forgotten Civilizations: 20 Lost World Novels
David Franklin Powell
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The Book of Monsters: 40 Timeless Horror Novels
David Franklin Powell
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The Beasts of Nightmares: 40 Monster Books
David Franklin Powell
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20 Lost World Classics
David Franklin Powell
