As the waters rose in FLOOD, high in the Colorado mountains the US government was building an ark. Not an ark to ride the waves but an ark that would take a select few thousand people out into space to start a new future for mankind. Sent out into deep space on a journey lasting years, generations of crew members carry the hope of a new beginning on a new, incredibly distant, planet.

But as time passes knowledge and purpose is lost and division and madness grows. And back on earth life, and man, find a new way. This is the epic sequel to the acclaimed FLOOD; a stirring tale of what mankind will do to survive and the perfect introduction for new readers to one of SF's greatest tropes; the generation ship.

Written by one of the most significant SF writers of the last 30 years, a man considered to be the heir of Arthur C. Clarke as a writer with a unique ability to popularize science and science fiction for the largest possible audience FLOOD and ARK together form a landmark in modern SF.