This novel takes us back into a time when Dr. Carol Marcus just gets her first own project and has a hot affair with one James T. Kirk who just made commander on a starship. She is involved in a terraforming-sub-project to heighten soil-efficiency and for this she has to go to Mars. There a group of dedicated environmentalists tries to hinder her free-field-experiment. Which then goes terrible wrong. Apart from the nature-awareness-anglem this is primarly a novel about love. The love between C. Kirk and Dr. Marcus and why it went wrong and the first love-interest for Mr. Spock. Psychologically interesting eventhough the leader of the environmentalists comes away a little bit naive concerning his topic. All in all quite nice.