A towering masterwork of science fiction adventure and one of the best-selling science fiction novels of all time. L. Ron Hubbard's "Battlefield Earth" opens with breathtaking scope on an Earth dominated for 1,000 years by an alien invader--and man is an endangered species. From the handful of surviving humans a courageous leader emerges--Jonnie Goodboy Tyler, who challenges the invincible might of the alien Psychlo empire in a battle of epic scale, danger and intrigue with the fate of the Earth and of the universe in the tenouos balance.