"The Safina is a city-ship halfway through its four-hundred-year voyage from the ruins of Earth to a new colony world. Its crew maintains the ship, generation after generation, while protecting their ancestors in cryostasis so that one day they will be able to enjoy a fresh start under clear blue skies. But when blackouts begin, unrest follows. The ship can only continue running smoothly with the cooperation of the crew. And the crew has had enough. As coordinated acts of resistance coincide with a much more complex conspiracy, a chain of events is set in motion that will change life on the Safina forever." -- Back cover.