<p>Years have passed on Isis, but life has gone backward, not forward. Under their leader, Mark London, the settlers have abandoned the technological knowledge of their forefathers. Upper Isis is now a forbidden zone, and the history of the first inhabitants from Earth has been replaced by myth. But one inquiring young man yearns to know the truth, and soon he gets the chance to find it.</p>

The Guardian of Isis

Mónica Hughes

Boston, Massachusetts, U.S.A.: Houghton Mifflin Company, 1992

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Books by Boston, Massachusetts, U.S.A.: Houghton Mifflin Company, 1992

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The Guardian of Isis