Ender's Game Part 10

Ender's army wins every battle, and is soon getting many more battles than everyone else in battle school, more that twice a day at some points. Dragon army is exhausted. One of Ender's star pupils is a tiny kid named Bean, how does everything better and faster than the other boys in Dragon army. But then, Ender gets in a fight with another boy, kills him, and is promoted. He is moved to Command School, even though Ender is only 10 or 11 and no one goes to Command School before they're at least 16. Before Ender and Graff shoot off in a rocket bound for Eros, the school's secret location, they take a 3 month pit stop back at earth, the purpose of which being to restore Ender's love in Earth, and help him remember what he is fighting for and why it's worth the sacrifice of his childhood. Ender also meets Valentine for the first time in several years, and she explains about Demosthenes and Locke, the aliases she and Peter had been using to try and take over the world. Then Graff and Ender leave for Eros, a tiny planet that was once a pit stop for the Buggers during the first invasion 100 years ago. There Ender plays on a game simulator, and meets Mazer Rackham, the hero that saved Earth during the second invasion 70 years ago, and should be dead by now, but through complicated faster-than-light space travel, managed to only age about 5 years, the purpose of which being for him to be alive to be able to teach Ender. They become companions and Mazer trains Ender hard, giving him actual challenges for the first time ever.