Johnny Maxwell is about to blow up the alien fleet on his latest computer game, when all of a sudden a message scrolls across his screen: “We surrender.”

But the aliens aren’t supposed to surrender—they’re supposed to die! After all, it is only a game…right?

Timely, thought-provoking, surprising, and utterly hilarious, Only You Can Save Mankind is the first of the Johnny Maxwell trilogy, written by internationally bestselling author Terry Pratchett and perfect for his fans both old and young.