Finally, under the guidance of Maze Rehan, Ender defeated the Zerg unconsciously. He always thought that fighting was a game, and he didn't know it was a real battle until he destroyed the Zerg, so he collapsed for a while. During his downfall, the earth's political situation was chaotic, and there was a rebellion at the location of the command college. This book was written in 1985. It seems that Soviet Russia at that time was still very bullish, which put a lot of pressure on the United States. Later, under the control of Locke, that is, Peter, the earth reached an agreement. All the children in the battle school can go back to earth, except Ender. Colonel Graff was also court-martialed. Later, Valenti found Ender and went with him to the home planet of the Zerg. There, Ender found the queen of the Zerg who summoned him and learned the story of the Zerg. Because of the speed of light, Ender and Valenti are still very young, and Peter, the overlord of the earth, is an old man in his 80 s. Ender wrote a book for them called The Queen and Overlord of Zerg, which tells the story of Zerg and Peter. The author of the book signed "Spokesman for the Dead". -This also happens to be the sequel "The Endorsement of Ender". As for the detailed scene of the war, you can find it in another book, The Shadow of Ender.