With the help of the Vulcan leader T’Pau, Spock gets permission to use the Guardian of Forever, a portal through time constructed by a long-vanished race, to venture into the past. On another trip into history, on the planet Sarpeidon, Spock had loved a woman who could not return with him to the future, and now Spock wishes to see the son she bore him, 5,000 years earlier. But a Romulan attack on the Guardian’s planet could interfere, unless the Enterprise can keep the Guardian out of their hands.

Other Editions:

by Boris Vallejo
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Format: Book: Paperback
Language: English
Published by: Pocket Books
ISBN-10: 067160550X
ISBN-13: 978-0671605506
Published On: 1985-08-02

by Boris Vallejo
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Format: Book: Paperback
Language: English
Published by: Pocket Books
ISBN-10: 0671038516
ISBN-13: 978-0671038519
Length: 191
Published On: 1999-08-16

Timescape by Boris Vallejo
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Format: Book: Paperback
Language: English
Published by: Pocket Books
ISBN-10: 0671473158
ISBN-13: 978-0671473150
Length: 191
Published On: 1983-08-01

Book Club Edition by Boris Vallejo
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Format: Book: Hardcover
Language: English
Published by: Pocket Books
Length: 141

by Boris Vallejo, James Doohan, Leonard Nimoy
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Format: Audio Book: Cassette
Language: English
Published by: Simon & Schuster Audio
ISBN-10: 067166865X
ISBN-13: 978-0671668655
Published On: 1988-08-16

by Leonard Nimoy
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Format: Audio Book: Digital
Language: English
Published by: Simon & Schuster Audio
Length: 1:33:00
Published On: 2001-04-18

Canadian Variant
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