The Locked Room: Audiobook
Book 3 of the Baker Street Mysteries series
According to The Books Insider's catalog data, The Locked Room runs 6.6 hours as an unabridged audiobook, narrated by Sophie Roberts (about 4.4 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 6.6 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 6.6 hours, it is shorter than 64% of the 5,716 Cozy Mystery audiobooks in our catalog.
Catching up on The Baker Street Mysteries
This is book 3. Books 1 to 2 run 12.8 hours before it; books 1 to 3 run 19.4 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | The Baker Street Letters: A Mystery | 6.3 hrs |
| 2 | The Brothers of Baker Street | 6.5 hrs |
| 3 | The Locked Room | 6.6 hrs |
More narrated by Sophie Roberts
Sophie Roberts narrates 155 unabridged audiobooks in our catalog, 1,424 hours in all.
About as long, on the Cozy Mystery shelf
1,010 Cozy Mystery audiobooks in our catalog run within 10% of this length. The most popular on the store:
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
The Locked Room is book 3 of Holly Hepburn's Baker Street Mysteries series: a 6.6-hour unabridged recording, read by Sophie Roberts, released January 20, 2026, on the Cozy Mystery shelf.
The listen at a glance
- Length
- 6.6 hrs
- Narrated by
- Sophie Roberts
- Released
- January 20, 2026
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Cozy Mystery
- Series
- The Baker Street Mysteries #3
- ISBN
- 9781835337592
How to listen to The Locked Room 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 Locked Room as an audiobook?
The Locked Room runs 6.6 hours unabridged. At 1.5× speed that drops to roughly 4.4 hours.
Is The Locked Room free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Locked Room?
The Locked Room is narrated by Sophie Roberts.