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5 Books Found

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Based on your description:

"humans decipher ancient tablet markings as coordinates of portals"

An AI model suggested these books. We look them up in public book catalogs. How we make these pages

September 23, 2026
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Sphere
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Sphere

Michael Crichton

1980
70 editions
Novels (Congo / Eaters of the Dead / Sphere)
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Novels (Congo / Eaters of the Dead / Sphere)

Michael Crichton

1994
2 editions
The Hercules Text (Ace Special, No 7)
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The Hercules Text (Ace Special, No 7)

Jack McDevitt

1986
1 edition
The Hercules Text
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The Hercules Text

Jack McDevitt

2015
2 editions
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