Seventeen years after the Food and Fuel Wars devastated Earth, transforming a once powerful civilization into isolated farming communities in which scientists are burned at the stake, astronomer Allen Chandliss, hidden in the Idaho hills, discovers that aliens are about to arrive on Earth.

In the sequel to Emprise, Merritt Thackery had longed dreamed of becoming a part of the Unified Space Survey, but when he is finally given his chance, he finds himself on a mission beyond the boundaries of known space to seek out an unknown enemy and win Earth's ultimate freedom. Reprint.

Merritt Thackery races his stolen starship toward the deadly Mizari star system and toward a confrontation with an alien empire that threatens the survival of all humanity, in the epic conclusion of the classic science fiction trilogy. Reprint.