This is a story of the end of the world. But not our world. Not Earth. We're still working on that. No, this story takes place in the future when we will have spread to lots of worlds and carried our short-sighted tendency to screw things up to the stars.And let's face it, the end of the world, even our world, has happened before. The dinosaurs' Earth ended. So did the Neanderthals'. Rome fell a couple of times. The worlds of Carthage, Byzantium and...