The first installment of Pratchetts uproarious Johnny Maxwell trilogy takes on aliens, girls, video games, and the nature of war itself.Its just a game . . . isnt it?The alien spaceship is in his sights. His finger is on the Fire button. Johnny Maxwell is about to set the new high score on the computer game Only You Can Save Mankind.Suddenly, a message appears: We wish to talk. We surrender.But the aliens arent supposed to surrender—theyre supposed to die!