Join George and Annie as they explore the galaxy in this cosmic adventure series from acclaimed scientist Stephen Hawking and his daughter Lucy Hawking. George's parents, who have always been wary of technology, warn him about their new neighbors, especially the girl George's age, Annie, who seems to be following in her scientist father's footsteps. But when George befriends them and Cosmos, their super-computer, he finds himself on wildly fun adventures through the galaxy that explore themes of physics, evolution, environmental conservation, and time travel. This complete paperback collection includes: George's Secret Key to the Universe George's Cosmic Treasure Hunt George and the Big Bang George and the Unbreakable Code George and the Blue Moon George and the Ship of Time