Riley: Audiobook
Book 33 of the K9 Files series
According to The Books Insider's catalog data, the Riley audiobook runs 5.5 hours unabridged, narrated by Tristan Wright (about 3.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 5.5 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 11 days |
| 1 hour / day | 6 days |
| 2 hours / day | 3 days |
| 1 hour / day at 1.5× | 4 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 5.5 hours, it is shorter than 84% of the 7,690 Mystery audiobooks in our catalog.
Catching up on The K9 Files
This is book 33. Books 1 to 32 run 180.4 hours before it; books 1 to 33 run 185.9 hours in all.
More narrated by Tristan Wright
Tristan Wright narrates 100 unabridged audiobooks in our catalog, 639 hours in all.
About as long, on the Mystery shelf
804 Mystery audiobooks in our catalog run within 10% of this length. The most popular on the store:
- Deal with the Devil
- Kink Camp: Hunted
- Demon Rumm
- Luck of the Devil
- Long Time Coming
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
Riley is book 33 of Dale Mayer's K9 Files series: a 5.5-hour unabridged recording, read by Tristan Wright, released July 29, 2026, on the Mystery shelf.
The listen at a glance
- Length
- 5.5 hrs
- Narrated by
- Tristan Wright
- Released
- July 29, 2026
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mystery
- Series
- The K9 Files #33
- ISBN
- 9781834088822
How to listen to Riley 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 Riley audiobook?
Riley runs 5.5 hours unabridged. At 1.5× speed that drops to roughly 3.7 hours.
Is the Riley audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Riley?
Riley is narrated by Tristan Wright.