in the barracks at the base. Ender lays in his bed next to one of his troop members. he starts thinking about his home. He remembers how his sister, Valentine. He remembers how his sister would always make him fresh pancakes every Friday and how she'd always try her best to protect him from Peter when he got in those moods. Ender started to cry, a for the first time his bunk mates saw his weakness
in the battle chamber, Graff calls ender over. he tells ender that he is being transferred to command school, where he will learn to lead fleets into battle and hopefully help defeat the buggers. Ender doesn't want to go though, he doesn't want to leave his friends. but ender has no choice but to go and learn to fight. they leave at once.
bugger 1: zorkar, it may be time to invade the earth again. Zorkar: you may be right heslip, my son. for they are weak, their economy is in the midst of building so we must strike fast. when do you propse we act. Heslip: I say three weeks, we need time to prepare but fast enough that they dont have time to recover.
THREE WEEKS LATER
Ender shows up to the command room to take his final test. this test is a simulation where he fights a realistic battle with buggers as he commands his fleet. In the command room ender starts to feel weird, almost as if the simulation was uncannily real. but he proceeds with the mission, and passes the final with flying colors.
after the final test, Ender asks his captain about what he felt in there, the captain immediately became sullen. he apologizes and tells ender that the simulation was actually real, and he had just killed all the buggers. Ender breaks down and starts crying, now hes worse than his brother peter. For the rest of his life ender is known as a killer. (yes that's actually how it ends)