George and the Unbreakable Code: Audiobook
Book 4 of the George's Secret Key series
According to The Books Insider's catalog data, the George and the Unbreakable Code audiobook runs 6.9 hours unabridged, narrated by Roy Mcmillan and Sophie Aldred (about 4.6 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 6.9 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 14 days |
| 1 hour / day | 7 days |
| 2 hours / day | 4 days |
| 1 hour / day at 1.5× | 5 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 6.9 hours, it runs longer than 69% of the 7,923 Mystery & Fantasy audiobooks in our catalog.
More narrated by Roy Mcmillan
Roy Mcmillan narrates 90 unabridged audiobooks in our catalog, 846 hours in all.
- The Passengers
- Underland: A Deep Time Journey - The bestselling nature book from the author of Is a River Alive?
- The Witchfinder's Sister: A haunting historical thriller perfect for fans of The Familiars and The Dutch House
- The Second Sleep: From the bestselling author of Conclave
- The Rumour: The bestselling must-read thriller with a killer twist
About as long, on the Mystery & Fantasy shelf
1,140 Mystery & Fantasy audiobooks in our catalog run within 10% of this length. The most popular on the store:
- A Wrinkle in Time
- Warriors #1: Into the Wild
- The City of Ember: The First Book of Ember
- Woof: A Bowser and Birdie Novel
- The Hive Queen (Wings of Fire #12)
Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.
About this listen
George and the Unbreakable Code is book 4 of Lucy Hawking's George's Secret Key series: a 6.9-hour unabridged recording, read by Roy Mcmillan and Sophie Aldred, released September 6, 2016, on the Mystery & Fantasy shelf.
The listen at a glance
- Length
- 6.9 hrs
- Narrated by
- Roy Mcmillan, Sophie Aldred
- Released
- September 6, 2016
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mystery & Fantasy
- Series
- George's Secret Key #4
- ISBN
- 9781508225058
How to listen to George and the Unbreakable Code free
New members at audiobooks.com get three free audiobooks with the trial.
Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.
Start listening freeQuestions listeners ask
How long is the George and the Unbreakable Code audiobook?
George and the Unbreakable Code runs 6.9 hours unabridged. At 1.5× speed that drops to roughly 4.6 hours.
Is the George and the Unbreakable Code audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates George and the Unbreakable Code?
George and the Unbreakable Code is narrated by Roy Mcmillan and Sophie Aldred.