Star Trek | Yesterday's Son | A.C. Crispin | Paperback Book

Spock discovers his own son - living 5,000 years in the past!

The Romulans attack the planet Gateway, where Federation scientists are studying the Guardian of Forever - The mysterious portal to the past.

The Enterprise must protect the Guardian or destroy it. But Spock has already used the portal to journey to the past. On the planet Sarpedion, 5,000 years ago. Spock knew a beautiful, primitive woman. Now he has gone to meet his son!

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