An Unpardonable Act: Detective Anna Gwynne Series Book 1: Audiobook
Book 1 of the Detective Anna Gwynne series
According to The Books Insider's catalog data, An Unpardonable Act: Detective Anna Gwynne Series Book 1 runs 10.3 hours as an unabridged audiobook, narrated by Olivia Mace (about 6.9 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 10.3 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 21 days |
| 1 hour / day | 11 days |
| 2 hours / day | 6 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 10.3 hours, it runs longer than 75% of the 22,296 Police & Detective audiobooks in our catalog.
Catching up on Detective Anna Gwynne Series
This is book 1. Books 1 to 3 run 31.1 hours in all.
More narrated by Olivia Mace
Olivia Mace narrates 51 unabridged audiobooks in our catalog, 516 hours in all.
About as long, on the Police & Detective shelf
5,111 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
An Unpardonable Act: Detective Anna Gwynne Series Book 1 is book 1 of Dylan Young's Detective Anna Gwynne series: a 10.3-hour unabridged recording, read by Olivia Mace, released April 22, 2026, on the Police & Detective and Espionage shelves.
The listen at a glance
- Length
- 10.3 hrs
- Narrated by
- Olivia Mace
- Released
- April 22, 2026
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Police & Detective, Espionage
- Series
- Detective Anna Gwynne Series #1
- ISBN
- 9781004231454
How to listen to An Unpardonable Act: Detective Anna Gwynne Series Book 1 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 An Unpardonable Act: Detective Anna Gwynne Series Book 1 as an audiobook?
An Unpardonable Act: Detective Anna Gwynne Series Book 1 runs 10.3 hours unabridged. At 1.5× speed that drops to roughly 6.9 hours.
Is An Unpardonable Act: Detective Anna Gwynne Series Book 1 free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates An Unpardonable Act: Detective Anna Gwynne Series Book 1?
An Unpardonable Act: Detective Anna Gwynne Series Book 1 is narrated by Olivia Mace.
Is An Unpardonable Act: Detective Anna Gwynne Series Book 1 worth listening to at 1.5× speed?
At 1.5× you'd finish in about 6.9 hours, saving 3.4 hours.