Vivid, sexy, and sharply written...a nonstop, white-knuckle tour of quantum physics, artificial intelligence, and the human heart. -- Nicola Griffith <br> A spiky, detailed, convincing, compelling page-turner, and the science is good too. Chris Moriarty is a dangerous talent. -- Stephen Baxter <br> Action, mystery and drama, set against some of the most plausible speculative physics I've seen. -- David Brin <br> Highly atmospheric ... a hefty far-future exploration of AI, human cloning, class conflict and plain old-fashioned murder. -- Publishers Weekly <p>