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Isaac Asimov's Caliban is a science fiction novel by Roger MacBride Allen, set in Isaac Asimov's Robot/Empire/Foundation universe.
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The Ring of Charon is a science fiction book by American writer Roger MacBride Allen, first published in 1990 by Tor Books. It is the first in a series of three books under the name of The Hunted Earth. The story unfolds as an unknown alien race captures Earth with the use of a controlled wormhole, which was triggered …
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