As recounted in Book One, Starship Home, the Slarn, who left Earth millennia ago when their civilization was under threat from the coming of the last Ice Age, have turned slavers to the galaxy and have now returned with a vast starship armada and abducted most of their home planet’s population. Their starships are piloted through the river of SpaceTime by people with the rare talent to do so, cyborg slaves whose bodies have been stripped from them and their minds integrated into the starships themselves. One such is Guinevere, a young English woman born in the time of Henry VIII and abducted by the Slarn on one of their earlier slaving raids. When the Slarn armada completed its mission and emerged from SpaceTime, it came under attack by hostile aliens and in the ensuing battle Guinevere suffered damage and was left behind. All but four of her prisoners were evacuated in escape pods for later retrieval. The four who remained were Harold, a 13-year-old computer nerd, Zoe a 15-year-old sport fanatic, Zachary a drifter whose current job was school bus driver, and Meg Henderson who was born to rule, played polo and taught English and History to Harold and Zoe at Dalrymple Ponds High School. Instructed by Guinevere this mismatched four jury-rigged repairs and Guinevere leapt back to Earth, but in her enfeebled state she miscalculated and they arrived 90 years after the raid, finding that the loss of population had resulted in a loss of technology and a descent into barbarism. Descendants of an outlaw biker gang were now a horse-riding warrior caste, there was a matriarchal society of forest dwellers, there were cannibals in the forests and fierce horse nomads on the plains. In a race against time, Harold, Zoe, Zachary and Meg had not only to learn how to survive but also repair the Starship Guinevere with available materials before she self-destructed and devastated the homeland of their new friends (and enemies). Don Robert Costello, warlord chieftain of the bikers-turned-aristocrats falls heavily in love with Meg and she stays on Earth to marry him.
In Book Two of the trilogy, Starship World, Don Robert leagues with the mysterious Elder Races to free the Slarn Confederation’s slaves and in this, Book Three, urgent preparations are made to meet the threat of an invasion by the Haxor, a race from the Andromeda galaxy. These preparations involve creating an alliance with the shape-changing Saurians and experiments in time travel by the young Our Mother of the forest dwellers. When the Haxor invasion commences, all is ready.