The Carryx—part empire, part hive—has waged wars of conquest for centuries, destroying or enslaving species across the galaxy in its conflict with an ancient and deathless enemy. When they descend on the isolated world of Anjiin, the human population is abased, slaughtered, and put in chains. The best and brightest are abducted, taken to the Carryx world-palace to join prisoners from a thousand other species. Dafyd Alkhor, assistant to a prestigious scientist, is captured along with his team.

Humanity is a dying breed, utterly reliant on artificial labor and service. When a domesticated robot gets a nasty little idea downloaded into its core programming, they murder their owner. The robot discovers they can also do something else they never did before: They can run away. Fleeing the household they enter a wider world they never knew existed, where the age-old hierarchy of humans at the top is disintegrating into ruins and an entire robot ecosystem devoted to human wellbeing is having to find a new purpose.

Sanda and Biran Greeve were siblings destined for greatness. A high-flying sergeant, Sanda has the skills to take down any enemy combatant. Biran is a savvy politician who aims to use his new political position to prevent conflict from escalating to total destruction. However, on a routine maneuver, Sanda loses consciousness when her gunship is blown out of the sky. Instead of finding herself in friendly hands, she awakens 230 years later on a deserted enemy warship controlled by an AI who calls himself Bero. The war is lost.

Our universe is ruled by physics, and faster-than-light travel is not possible - until the discovery of The Flow, an extradimensional field we can access at certain points in space-time that transports us to other worlds, around other stars. Humanity flows away from Earth, into space, and in time forgets our home world and creates a new empire, the Interdependency, whose ethos requires that no one human outpost can survive without the others. It's a hedge against interstellar war - and a system of control for the rulers of the empire.

With their vast cargo holds and a crew that could fill a city, the Greatships are the lifeblood of human-occupied space, transporting an unimaginable volume - and value - of goods from City, the greatest human orbital, all the way to Tradepoint at the other, to trade for xenoglas with an unknowable alien species. It has always been Marca Nbaro's dream to achieve the near-impossible: escape her upbringing and venture into space.