Killer Secrets: Audiobook
Book 3 of the National Forest K-9 series
According to The Books Insider's catalog data, the Killer Secrets audiobook runs 9.3 hours unabridged, narrated by Hayli Henderson (about 6.2 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 9.3 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 19 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 9.3 hours, it runs longer than 59% of the 7,690 Mystery audiobooks in our catalog.
Catching up on National Forest K-9
This is book 3. Books 1 to 2 run 19.1 hours before it; books 1 to 5 run 48.4 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Chasing Justice | 9.6 hrs |
| 2 | Hunting the Truth | 9.5 hrs |
| 3 | Killer Secrets | 9.3 hrs |
| 4 | Buried Lies | 9.8 hrs |
| 5 | Deadly Revenge | 10.3 hrs |
More narrated by Hayli Henderson
Hayli Henderson narrates 5 unabridged audiobooks in our catalog, 67 hours in all.
About as long, on the Mystery shelf
1,760 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
Killer Secrets is book 3 of Kathleen Donnelly's National Forest K-9 series: a 9.3-hour unabridged recording, read by Hayli Henderson, released March 4, 2025, on the Mystery shelf.
The listen at a glance
- Length
- 9.3 hrs
- Narrated by
- Hayli Henderson
- Released
- March 4, 2025
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mystery
- Series
- National Forest K-9 #3
- ISBN
- 9781488232305
How to listen to Killer Secrets 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 Killer Secrets audiobook?
Killer Secrets runs 9.3 hours unabridged. At 1.5× speed that drops to roughly 6.2 hours.
Is the Killer Secrets audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Killer Secrets?
Killer Secrets is narrated by Hayli Henderson.