What the Devil Knows: Audiobook
Book 16 of the Sebastian St. Cyr Mysteries series
According to The Books Insider's catalog data, the What the Devil Knows audiobook runs 9.5 hours unabridged, narrated by Davina Porter (about 6.4 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 9.5 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 9.5 hours, it runs longer than 65% of the 22,296 Police & Detective audiobooks in our catalog.
Catching up on Sebastian St. Cyr Mysteries
This is book 16. Books 1 to 15 run 154.1 hours before it; books 1 to 21 run 222.2 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | What Angels Fear | 11.8 hrs |
| 2 | When Gods Die | 10.2 hrs |
| 3 | Why Mermaids Sing | 8.5 hrs |
| 4 | Where Serpents Sleep | 10 hrs |
| 5 | What Remains of Heaven | 8.7 hrs |
| 6 | Where Shadows Dance | 9.4 hrs |
| 7 | When Maidens Mourn | 10.4 hrs |
| 8 | What Darkness Brings | 11.2 hrs |
| 9 | Why Kings Confess | 10.8 hrs |
| 10 | Who Buries the Dead | 10.6 hrs |
| 11 | When Falcons Fall | 10.9 hrs |
| 12 | Where the Dead Lie | 10.6 hrs |
More narrated by Davina Porter
Davina Porter narrates 183 unabridged audiobooks in our catalog, 2,579 hours in all.
- Outlander
- Dragonfly in Amber
- Voyager
- Drums of Autumn
- The Fiery Cross
About as long, on the Police & Detective shelf
5,888 Police & Detective 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
What the Devil Knows is book 16 of C.S. Harris's Sebastian St. Cyr Mysteries series: a 9.5-hour unabridged recording, read by Davina Porter, released April 6, 2021, on the Police & Detective shelf.
The listen at a glance
- Length
- 9.5 hrs
- Narrated by
- Davina Porter
- Released
- April 6, 2021
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Police & Detective
- Series
- Sebastian St. Cyr Mysteries #16
- ISBN
- 9781705020319
How to listen to What the Devil Knows 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 What the Devil Knows audiobook?
What the Devil Knows runs 9.5 hours unabridged. At 1.5× speed that drops to roughly 6.4 hours.
Is the What the Devil Knows audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates What the Devil Knows?
What the Devil Knows is narrated by Davina Porter.