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Isaac Bashevis Singer
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Y2K
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Cresperian Saga (2)
Xone of Contention
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Wolverine (1)
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Eisenhorn (1)
Xenopath
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Xenon 1944-03 Number One
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The Ark Universe (2)
Xenocide
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Ender Wiggin (3)
Xeethra
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Zothique (1)
The Xeelee Sequence: Timeline
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The Xeelee Flower
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Yon Ill Wind
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Roc and a Hard Place
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