Mystery on the Mayhem Express: Audiobook
Book 23 of the Hardy Boys Adventures series
According to The Books Insider's catalog data, the Mystery on the Mayhem Express audiobook runs 4 hours unabridged, narrated by Tim Gregory (about 2.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 4 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 8 days |
| 1 hour / day | 4 days |
| 2 hours / day | 2 days |
| 1 hour / day at 1.5× | 3 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 4 hours, it is shorter than 58% of the 7,923 Mystery & Fantasy audiobooks in our catalog.
Catching up on Hardy Boys Adventures
This is book 23. Books 1 to 22 run 73.4 hours before it; books 1 to 23 run 77.4 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Secret of the Red Arrow | 3.6 hrs |
| 2 | Mystery of the Phantom Heist | 3 hrs |
| 3 | The Vanishing Game | 3.1 hrs |
| 4 | Into Thin Air | 2.7 hrs |
| 5 | Peril at Granite Peak | 3.5 hrs |
| 6 | The Battle of Bayport | 3.5 hrs |
| 7 | Shadows at Predator Reef | 2.9 hrs |
| 8 | Deception on the Set | 2.7 hrs |
| 9 | The Curse of the Ancient Emerald | 2.9 hrs |
| 10 | Tunnel of Secrets | 3.1 hrs |
| 11 | Showdown at Widow Creek | 2.8 hrs |
| 12 | The Madman of Black Bear Mountain | 2.9 hrs |
More narrated by Tim Gregory
Tim Gregory narrates 245 unabridged audiobooks in our catalog, 1,267 hours in all.
About as long, on the Mystery & Fantasy shelf
473 Mystery & Fantasy 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
Mystery on the Mayhem Express is book 23 of Franklin W. Dixon's Hardy Boys Adventures series: a 4-hour unabridged recording, read by Tim Gregory, released June 22, 2021, on the Mystery & Fantasy shelf.
The listen at a glance
- Length
- 4 hrs
- Narrated by
- Tim Gregory
- Released
- June 22, 2021
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mystery & Fantasy
- Series
- Hardy Boys Adventures #23
- ISBN
- 9781645554202
How to listen to Mystery on the Mayhem Express 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 Mystery on the Mayhem Express audiobook?
Mystery on the Mayhem Express runs 4 hours unabridged. At 1.5× speed that drops to roughly 2.7 hours.
Is the Mystery on the Mayhem Express audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Mystery on the Mayhem Express?
Mystery on the Mayhem Express is narrated by Tim Gregory.