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Map of Bones sf-2
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The Eye of God: A Sigma Force Novel
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The Last Oracle (2008) sf-5
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City of Screams
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The Doomsday Key and The Last Oracle with Bonus Excerpts
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Blood Brothers (the order of the sanguines)
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The Blood Gospel toots-1
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The Judas Strain sf-4
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Blood Infernal
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SANDSTORM sf-1
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Amazonia: a novel
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Bloodline: A Sigma Force Novel
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The Demon Crown: A Sigma Force Novel
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City of Screams (the order of the sanguines)
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War Hawk: A Tucker Wayne Novel