George and the Unbreakable Code
 First edition
| |
| Authors |
Lucy Hawking Stephen Hawking |
|---|---|
| Genre | Popular science |
| Publisher | Doubleday Childrens |
Publication date |
2014 |
| Pages | 352 |
| ISBN | 9780857533258 |
| Preceded by | George and the Big Bang |
| Followed by | George and the Blue Moon |
George and the Unbreakable Code is a 2014 children's book written by Stephen and Lucy Hawking. The book is the fourth book in the George series, following George's Secret Key to the Universe, George's Cosmic Treasure Hunt, and George and the Big Bang, and preceding George and the Blue Moon.