This book was a marvel of sci-fi writing. I don't think L. Ron Hubbard wrote this book. All of his books before this one were rubbish. He only started writing good books when he founded that stupid cult(scientology) and got all of those followers. I think one of his followers probably wrote all of L. Ron's books for him. That having been said, the story of this book is epic. Johnny Good boy Tyler is one of the surviving humans after an alien slaughter. He has grown up in a world damaged by warfare and controlled by evil alien dominators bent on mining our planet to an empty shell.