A young boy believes he and his ancestors have been raising an extra-terrestrial pet for several generations, when actually the beast has been raising them. When the beast must be returned to his native planet, he insists on taking his human "pet" with him.
A youth and his father emigrate from the mechanical and organized world on overpopulated Earth to become colonists on Ganymede, the third moon of Jupiter.
A high school senior goes through the gate to an unknown planet for a two-to-ten day final exam in Advanced Survival, and realizes, after a period of fighting the elements and wildlife, that something has gone wrong with the gate and what was a brief survival exam is an endless struggle for life.
E.C. "Scar" Gordon embarks on the adventure of a lifetime after answering an intriguing classified advertisement for a brave, healthy, unattached, courageous, and handsome man.