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Operation Valkyrie
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Planet of Light
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Ramps Down, Troops Away!
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Renegade of Callisto
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Renegades of Time
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Rocket to Luna
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Rockets Through Space
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Rockets to Nowhere
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Roman Gold
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Royal Yankee
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Saffron's Army
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Saffron's Trials
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Saffron's War
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Science Fiction and Fantasy of Robert W. Lowndes
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Sea Wolf #1: Steel Shark
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Sea Wolf #2: Shark North
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Sea Wolf #3: Shark Pack
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Sea Wolf #4: Shark Hunt
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Sea Wolf #5: Shark Africa
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Sea Wolf #6: Shark Raid
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