The Hugo Award–winning author reunites with his acclaimed coauthor in “a multi-generational, star-spanning epic with intriguing, fast-paced action” (New York Times–bestselling author Brian Herbert).

Fleeing a solar system overrun by rogue AIs and machine/human hybrids, the crew of the starship John Glenn set course for the pristine planet Ymir. But their plan to terraform Ymir and create a utopian society that limits technology is thrown wildly off course when they find themselves in the wrong solar system.
To one day reach Ymir, they must first shape the planet Harlequin’s moon, Selene, into a new, temporary home. Gabriel, the head terraformer, must lead the project with all the wrong materials and too few resources. At his disposal are the nearly-illiterate children of the original colonists, born and bred to build Harlequin’s moon into an antimatter factory.
Rachel Vanowen is one of these children. She knows that the terraforming Council monitors her actions from a circling vessel above Selene’s atmosphere. She also knows that these overseers are responsible for all of her people's food, skills, and knowledge. But she begins to wonder what will become of her people once Selene is abandoned for Ymir . . .

Hard Science Fiction