Earth has been destroyed, the entire solar system turned to dust by a cataclysmic event known as the Fracture. Now, the last survivors of humanity live on vast arkships drifting through the Cluster, doing what they can to survive in a hostile ever-changing environment. As civil war threatens to tear the House of Draig apart, a face from the past returns to unify the disparate factions, forcing Prince Halstead to make alliances with former enemies. With his grip on power weakening, Halstead grows more and more desperate to protect his people, putting him at odds with those closest to him. The lines of battle are drawn, the great arkships of the Cluster can no longer avoid all-out war, and Prince Halstead finds he must sacrifice everything he holds dear to save his people. Set against a backdrop of warring families and their vast arkships, personal challenges mix with political conspiracy in this action-packed fourth instalment in the highly acclaimed Arkship Saga series from award-winning British writer Niel Bushnell.