Kai: Audiobook
Book 13 of the Alpha Heroes series
According to The Books Insider's catalog data, the Kai audiobook runs 13.4 hours unabridged, narrated by Guillaume Dubois (about 8.9 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 13.4 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 27 days |
| 1 hour / day | 14 days |
| 2 hours / day | 7 days |
| 1 hour / day at 1.5× | 9 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 13.4 hours, it runs longer than 91% of the 7,690 Mystery audiobooks in our catalog.
Catching up on Alpha Heroes
This is book 13. Books 1 to 12 run 143.2 hours before it; books 1 to 13 run 156.5 hours in all.
More narrated by Guillaume Dubois
Guillaume Dubois narrates 35 unabridged audiobooks in our catalog, 504 hours in all.
About as long, on the Mystery shelf
622 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
Kai is book 13 of Anna del Mar's Alpha Heroes series: a 13.4-hour unabridged recording, read by Guillaume Dubois, released December 24, 2025, on the Mystery shelf.
The listen at a glance
- Length
- 13.4 hrs
- Narrated by
- Guillaume Dubois
- Released
- December 24, 2025
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mystery
- Series
- Alpha Heroes #13
- ISBN
- 9798240095948
How to listen to Kai 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 Kai audiobook?
Kai runs 13.4 hours unabridged. At 1.5× speed that drops to roughly 8.9 hours.
Is the Kai audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Kai?
Kai is narrated by Guillaume Dubois.
Is Kai worth listening to at 1.5× speed?
At 1.5× you'd finish in about 8.9 hours, saving 4.5 hours.