The Enterprise is on a peaceful mission at Starbase 12, and Spock is visiting aboard a Klingon vessel, when a mysterious phenomenon causes the Klingon ship to vanish. Spock’s last message from the ship is cryptic, but frightening. It suggests that the Klingons are traveling into the past, hoping to kill one man who was decisive in the course of history, and thereby change it, destroying the Federation before it was born.

Other Editions:

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Format: Book: Paperback
Language: English
Published by: Pocket Books
ISBN-10: 0671743554
ISBN-13: 978-0671743550
Length: 255
Published On: 1985-05-01

German Variant
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Format: Book: Paperback
Language: German
Published by: Heyne Verlag

Canadian Variant
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Format: Book: Paperback
Language: English
Published by: Pocket Books

Embossed Cover
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Format: Book: Paperback
Language: English
Published by: Pocket Books
ISBN-10: 0671554271
Length: 255
MSRP: 3.50 USD