Invisible: Audiobook
Book 13 of the Sean O’Brien series
According to The Books Insider's catalog data, the Invisible audiobook runs 16.1 hours unabridged, narrated by Alex Knox (about 10.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 16.1 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 33 days |
| 1 hour / day | 17 days |
| 2 hours / day | 9 days |
| 1 hour / day at 1.5× | 11 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 16.1 hours, it runs longer than 92% of the 6,730 Action & Adventure (Fiction) audiobooks in our catalog.
More narrated by Alex Knox
Alex Knox narrates 191 unabridged audiobooks in our catalog, 1,791 hours in all.
About as long, on the Action & Adventure (Fiction) shelf
381 Action & Adventure (Fiction) 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
Invisible is book 13 of Tom Lowe's Sean O’Brien series: a 16.1-hour unabridged recording, read by Alex Knox, released February 1, 2022, on the Action & Adventure (Fiction) shelf.
The listen at a glance
- Length
- 16.1 hrs
- Narrated by
- Alex Knox
- Released
- February 1, 2022
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Action & Adventure (Fiction)
- Series
- Sean O’Brien #13
- ISBN
- 9781666149524
How to listen to Invisible 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 Invisible audiobook?
Invisible runs 16.1 hours unabridged. At 1.5× speed that drops to roughly 10.7 hours.
Is the Invisible audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Invisible?
Invisible is narrated by Alex Knox.
Is Invisible worth listening to at 1.5× speed?
At 1.5× you'd finish in about 10.7 hours, saving 5.4 hours.