Ghost is part of an anarcho-punk airboard gang who live to break the rules. And there's a good reason - their world, Saga, has a strict class system enforced by high-tech electronis, armed guards and a corrupt monarchy. But something is changing within saga. Strangers are appearing and disappearing on the streets, like some kind of special effect. Soon Ghost and her gang learn the complicated truth. Saga isn't actually a place; it's a sentient computer game. The strangers are "playing" from their home on New Earth, and access to Saga works on them like a drug. The Dark Queen who rules Saga is trying to enslave the people of New Earth by making them Saga addicts. And she will succeed unless Ghost and her friends - and Erik, from Epic, and his feinds - figure out how to stop her in time.