Once again it is up to Jamie Retief to save another diplomatic mission. Terra has recently signed a treaty with the planet Petreac. But revolution threatens and the Terrans must save the Nenni cast or their mission will end in abject failure.
Commander Greylorn leads humanity's last hope, one spaceship racing through the voids of the universe. The Red Tide has all but engulfed the Earth, just enough time to find planet Omega, colonized long ago and vanished. After four years, food stores are destroyed by meteor, crew set to mutiny, and alien ship with cargo of human bodies.
Foster has hired Legion to help him regain his lost memory. Then both men are suddenly attacked by alien powers. They flee to Stonehenge in England where they discover a strange control chamber deep in the ruins. They succeed in bringing down to earth an alien space ship which has been in orbit for thousands of years. Eventually they both become captives... on another planet.