George and the Unbreakable Code
Lucy Hawking & Stephen Hawking
| First published | June 2014 |
|---|---|
| Type | Novel |
| Series | George's Secret Key #4 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 2014 |
|
George and the Unbreakable Code | Doubleday (UK) | Novel | |
| June 2014 |
|
George and the Unbreakable Code | RHCP Digital | Novel | |
| June 2014 |
|
George and the Unbreakable Code | Doubleday (UK) | Novel | |
| June 2015 |
|
George and the Unbreakable Code | Corgi | Novel | |
| September 2016 |
|
George and the Unbreakable Code | Simon & Schuster Books for Young Readers | Novel | |
| September 2016 |
|
George's Secret Key Hardcover Collection: Books 1-4 | Simon & Schuster Books for Young Readers | Omnibus | |
| September 2016 |
|
George and the Unbreakable Code | Simon & Schuster Books for Young Readers | Novel | |
| November 2017 |
|
George and the Unbreakable Code | Simon & Schuster Books for Young Readers | Novel | |
| July 2019 |
|
George's Secret Key: Complete Hardcover Collection | Simon & Schuster Books for Young Readers | Omnibus | |4 |
| July 2020 |
|
George's Secret Key: Complete Paperback Collection | Simon & Schuster Books for Young Readers | Omnibus | |4 |