George travels to the future in the epic conclusion of the George's Secret Key series from Lucy Hawking. When George finds a way to escape the spacecraft Artemis, where he has been trapped, he is overjoyed. But something is wrong. There's a barren wasteland where his hometown used to be, intelligent robots roam the streets, and no one will talk to George about the Earth that he used to know. With the help of an unexpected new friend, can George find out what--or who--is behind this terrible new world, before it's too late?