George and the Unbreakable Code
By Stephen Hawking, Lucy Hawking
Series
- George - book 4
Genres: action-adventure, childrens
Recordings
Narrated by Roy McMillan, Sophie Aldred
- Runtime: 6 h 54 min
- Publisher: Penguin Audio
- Released: 2016
- ASIN (us): B01IPJYTQS
- ASIN (us): B01KYCU1TS
- 40 chapters