The Romulans attack the planet Gateway, where Federation scientists are studying the Guardian of Forever -- the mysterious portal to the past. The Starship 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 back to meet his son!
Get our latest book recommendations, author news, and competitions right to your inbox.
More books from this author: A.C. Crispin
More books in this series: Star Trek: The Original Series