Five thousand years later after a catastrophic event rendered the Earth a ticking time bomb, the progeny of a handful of outer space explorers--seven distinct races now three billion strong--embark on yet another audacious journey: to return to Earth.

His body hosting a pair of strange alien presences, an amnesiac space traveler returns home to an unrecognizable Earth
Many centuries in the future, a two-hundred-year-old man is discovered hibernating in a space capsule orbiting a distant star. Transported back to his home planet, Andrew Blake awakens to an Earth he does not recognize—a world of flying cars and sentient floating houses—with no memory whatsoever of his history...

"The last remnants of the human race left a dying Earth, desperate to find a new home among the stars. Following in the footsteps of their ancestors, they discover the greatest treasure of the past age--a world terraformed and prepared for human life. But all is not right in this new Eden. In the long years since the planet was abandoned, the work of its architects has borne disastrous fruit. The planet is not waiting for them, pristine and unoccupied....

In Locus and British Fantasy Award nominee Cassandra Khaw's first novel, a crew of diminished former criminals get back together to solve the mystery of their last, disastrous mission. But the universe's highly-evolved AI has its own opposing agenda... and will do whatever it takes to keep humans from ever controlling them again.