Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Science fiction for pre school children

The title of this review says exactly how I feel about this novel.The two heroes are sent in a spaceships to a nearby star to find habitable planets. They find humans there!. there is no explanation whatsoever how this has occurred, no new ideas, no antastic setting or fantastic aliens and no interesting plot. It feels like a bedtime story to be told to children. A complete waste of effort.