The 100-Year-Old Secret: The Sherlock Files #1: Audiobook
Book 1 of the Sherlock Files series
According to The Books Insider's catalog data, The 100-Year-Old Secret: The Sherlock Files #1 runs 2.8 hours as an unabridged audiobook, narrated by David Pittu (about 1.9 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 2.8 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 6 days |
| 1 hour / day | 3 days |
| 2 hours / day | 2 days |
| 1 hour / day at 1.5× | 2 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 2.8 hours, it runs longer than 56% of the 14,091 Non-fiction (Kids) audiobooks in our catalog.
Catching up on The Sherlock Files
This is book 1. Books 1 to 3 run 9.2 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | The 100-Year-Old Secret: The Sherlock Files #1 | 2.8 hrs |
| 2 | The Beast of Blackslope: The Sherlock Files #2 | 3.6 hrs |
| 3 | The Case that Time Forgot: The Sherlock Files #3 | 2.8 hrs |
More narrated by David Pittu
David Pittu narrates 126 unabridged audiobooks in our catalog, 846 hours in all.
About as long, on the Non-fiction (Kids) shelf
699 Non-fiction (Kids) 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 100-Year-Old Secret: The Sherlock Files #1 is book 1 of Tracy Barrett's Sherlock Files series: a 2.8-hour unabridged recording, read by David Pittu, released June 10, 2008, on the Non-fiction (Kids) and Mystery & Fantasy shelves.
The listen at a glance
- Length
- 2.8 hrs
- Narrated by
- David Pittu
- Released
- June 10, 2008
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Non-fiction (Kids), Mystery & Fantasy
- Series
- The Sherlock Files #1
- ISBN
- 9780739367629
How to listen to The 100-Year-Old Secret: The Sherlock Files #1 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 100-Year-Old Secret: The Sherlock Files #1 as an audiobook?
The 100-Year-Old Secret: The Sherlock Files #1 runs 2.8 hours unabridged. At 1.5× speed that drops to roughly 1.9 hours.
Is The 100-Year-Old Secret: The Sherlock Files #1 free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The 100-Year-Old Secret: The Sherlock Files #1?
The 100-Year-Old Secret: The Sherlock Files #1 is narrated by David Pittu.