The Unseen Sister: Audiobook
Book 2 of the Detective Kat Ballantyne series
According to The Books Insider's catalog data, The Unseen Sister runs 10.1 hours as an unabridged audiobook, narrated by Ell Potter (about 6.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 10.1 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 10.1 hours, it runs longer than 73% of the 22,296 Police & Detective audiobooks in our catalog.
Catching up on Detective Kat Ballantyne
This is book 2. Book 1 runs 10.8 hours before it; books 1 to 5 run 52 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | The Seventh Girl | 10.8 hrs |
| 2 | The Unseen Sister | 10.1 hrs |
| 3 | The Silent Wife | 10.1 hrs |
| 4 | The Lying Man | 10.9 hrs |
| 5 | The Rebel Son | 10.1 hrs |
More narrated by Ell Potter
Ell Potter narrates 84 unabridged audiobooks in our catalog, 947 hours in all.
- Hamnet
- Emily Wilde's Encyclopaedia of Faeries
- Beyond That, the Sea
- Emily Wilde's Map of the Otherlands
- Emily Wilde's Compendium of Lost Tales
About as long, on the Police & Detective shelf
5,462 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
The Unseen Sister is book 2 of Andy Maslen's Detective Kat Ballantyne series: a 10.1-hour unabridged recording, read by Ell Potter, released May 16, 2024, on the Police & Detective and Psychological shelves.
The listen at a glance
- Length
- 10.1 hrs
- Narrated by
- Ell Potter
- Released
- May 16, 2024
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Police & Detective, Psychological
- Series
- Detective Kat Ballantyne #2
- ISBN
- 9781491595664
How to listen to The Unseen Sister 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 Unseen Sister as an audiobook?
The Unseen Sister runs 10.1 hours unabridged. At 1.5× speed that drops to roughly 6.7 hours.
Is The Unseen Sister free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Unseen Sister?
The Unseen Sister is narrated by Ell Potter.
Is The Unseen Sister worth listening to at 1.5× speed?
At 1.5× you'd finish in about 6.7 hours, saving 3.4 hours.