One hundred years before Ender's Game, the aliens arrived on Earth with fire and death. Earth Afire by Orson Scott Card and Aaron Johnston is the story of the First Formic War. Victor Delgado beat the alien ship to Earth, but just barely. Not soon enough to convince skeptical governments that there was a threat. They didn't believe that until space stations and ships and colonies went up in sudden flame. And when that happened, only Mazer Rackham and the Mobile Operations Police could move fast enough to meet the threat.

The human race is at War with the "Buggers," an insect-like alien race. As Earth prepares to defend itself from total destruction at the hands of an inscrutable enemy, all focus is on the development of military geniuses who can fight such a war, and win. The long distances of interstellar space have given hope to the defenders of Earth--they have time to train these future commanders up from childhood, forging them into an irresistible force in the high orbital facility called the Battle School.

Ender Wiggin won the Third Formic war, ending the alien threat to Earth. Afterwards, all the terraformed Formic worlds were open to settlement by humans, and the International Fleet became the arm of the Ministry of Colonization, run by Hirum Graff. MinCol now runs Fleet School on the old Battle School station, and still recruits very smart kids to train as leaders of colony ships, and colonies.

They mustn't harm a human being, they must obey human orders, and they must protect their own existence...but only so long as that doesn't violate rules one and two. With these Three Laws of Robotics, humanity embarked on a bold new era of evolution that would open up enormous possibilities, and unforeseen risks.

Rigg is well trained at keeping secrets. Only his father knows the truth about Rigg’s strange talent for seeing the paths of people’s pasts. But when his father dies, Rigg is stunned to learn just how many secrets Father had kept from him - secrets about Rigg’s own past, his identity, and his destiny. And when Rigg discovers that he has the power not only to see the past, but also to change it, his future suddenly becomes anything but certain.