The astounding new novel from the master of science fictionPresident Barack Obama’s summer reading choiceTHE EARTH WAS A TICKING TIME BOMB.To ensure the survival they had to look beyond its atmosphere.So they became pioneers.Five thousand years later and their progeny form seven distinct races and they must journey to an alien: Earth.A magnificent, visionary work of speculative fiction from a true visionary that will dazzle you with its depth, psychology and awesome imagination.