The Three Locks: Audiobook
Book 4 of the A Sherlock Holmes Adventure series
According to The Books Insider's catalog data, The Three Locks runs 10 hours as an unabridged audiobook, narrated by Simon Darwen (about 6.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 10 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 20 days |
| 1 hour / day | 10 days |
| 2 hours / day | 5 days |
| 1 hour / day at 1.5× | 7 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 10 hours, it runs longer than 72% of the 22,296 Police & Detective audiobooks in our catalog.
Catching up on A Sherlock Holmes Adventure
This is book 4. Books 1 to 3 run 25.9 hours before it; books 1 to 6 run 50 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Art in the Blood | 6.5 hrs |
| 2 | Unquiet Spirits: Whisky, Ghosts, Murder | 11 hrs |
| 3 | The Devil’s Due | 8.4 hrs |
| 4 | The Three Locks | 10 hrs |
| 5 | What Child is This?: A Sherlock Holmes Christmas Adventure | 4.9 hrs |
| 6 | The Serpent Under: Treachery, Twists and Terror in Baker Street | 9.2 hrs |
More narrated by Simon Darwen
Simon Darwen narrates 38 unabridged audiobooks in our catalog, 318 hours in all.
About as long, on the Police & Detective shelf
5,516 Police & Detective 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 Three Locks is book 4 of Bonnie Macbird's A Sherlock Holmes Adventure series: a 10-hour unabridged recording, read by Simon Darwen, released April 1, 2021, on the Police & Detective shelf.
The listen at a glance
- Length
- 10 hrs
- Narrated by
- Simon Darwen
- Released
- April 1, 2021
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Police & Detective
- Series
- A Sherlock Holmes Adventure #4
- ISBN
- 9780008380861
How to listen to The Three Locks 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 Three Locks as an audiobook?
The Three Locks runs 10 hours unabridged. At 1.5× speed that drops to roughly 6.7 hours.
Is The Three Locks free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Three Locks?
The Three Locks is narrated by Simon Darwen.
Is The Three Locks worth listening to at 1.5× speed?
At 1.5× you'd finish in about 6.7 hours, saving 3.3 hours.