
by Lucy Hawking, Stephen Hawking
George and Annie are off on another cosmic adventure to discover what's happening on one of Saturn's moons. The friends face their toughest challenge yet as they try to uncover the truth about a mysterious space program.
About Lucy Hawking, Stephen Hawking
Catherine Lucy Hawking is an English journalist, novelist, educator, and philanthropist. She is the daughter of the theoretical physicist Stephen Hawking and writer Jane Wilde Hawking. She lives in London, and is a children's novelist and science educator.
via WikipediaISBN: 9781481476591