Five-time Hugo Award-winner Larry Niven weaves together time travel and fantasy to create an utterly unique novel on the origin of the Martian "canals." Hanville Svetz was born into a future earth that matches the sorriest predictions of Greenpeace. With most of Earth's original...
Five-time Hugo Award winner Larry Niven weaves time and fantasy to create an utterly unique novel of a time traveler who must retrieve the life forms extinct in his current existence.