This book goes well beyond a basic story and delves into larger mysteries as it raises questions about religion. Terry Prachett Ender's Game Ender is a third child, born in a socially unacceptable time when efforts are in place to keep the population low. He has been permitted by the millitary to be born. After a fight in school, he is admitted to a space academy and finds something he is truly good at. Meanwhile, the rest of the human fleet is on a 30 year mission to destroy the bugger homeworld.
Buggers are a race of ant-like aliens that attacked earth many years before.