Stephen Baxter 
Ark 

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.