The Impossible Fortress: Audiobook
According to The Books Insider's catalog data, The Impossible Fortress runs 7.4 hours as an unabridged audiobook, narrated by Griffin Newman (about 4.9 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 7.4 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 15 days |
| 1 hour / day | 8 days |
| 2 hours / day | 4 days |
| 1 hour / day at 1.5× | 5 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 7.4 hours, it is shorter than 68% of the 14,520 Literary Fiction audiobooks in our catalog.
About as long, on the Literary Fiction shelf
1,990 Literary 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
The Impossible Fortress is an audiobook by Jason Rekulak: a 7.4-hour unabridged recording, read by Griffin Newman, released February 7, 2017, on the Action & Adventure (Fiction) and Coming of Age shelves.
The listen at a glance
- Length
- 7.4 hrs
- Narrated by
- Griffin Newman
- Released
- February 7, 2017
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Action & Adventure (Fiction), Coming of Age, Literary Fiction
- ISBN
- 9781508228790
How to listen to The Impossible Fortress 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 Impossible Fortress as an audiobook?
The Impossible Fortress runs 7.4 hours unabridged. At 1.5× speed that drops to roughly 4.9 hours.
Is The Impossible Fortress free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Impossible Fortress?
The Impossible Fortress is narrated by Griffin Newman.