The first in a series of Star Trek: The Animated Series adaptations. Published by Ballantine Books in June 1974. Including adaptations for:

- Beyond The Farthest Star (Kirk's crew come across an ancient derelict vessel, but something is still living inside it.)

- Yesteryear (Spock travels back in time to prevent his own demise during his youth on Vulcan.)

- One Of Our Planets is Missing (The Enterprise crew learns that a massive, planet-destroying cloud has entered Federation space.)