Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4: Audiobook
Book 4 of the Riftborn series
According to The Books Insider's catalog data, the Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4 audiobook runs 11.5 hours unabridged, narrated by Matthew Wolf (about 7.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 11.5 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 23 days |
| 1 hour / day | 12 days |
| 2 hours / day | 6 days |
| 1 hour / day at 1.5× | 8 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 11.5 hours, it runs longer than 71% of the 12,109 Fantasy audiobooks in our catalog.
Catching up on Riftborn
This is book 4. Books 1 to 3 run 30.4 hours before it; books 1 to 4 run 41.8 hours in all.
More narrated by Matthew Wolf
Matthew Wolf narrates 42 unabridged audiobooks in our catalog, 365 hours in all.
About as long, on the Fantasy shelf
1,843 Fantasy 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
Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4 is book 4 of Steve McHugh's Riftborn series: a 11.5-hour unabridged recording, read by Matthew Wolf, released June 25, 2024, on the Fantasy and Paranormal shelves.
The listen at a glance
- Length
- 11.5 hrs
- Narrated by
- Matthew Wolf
- Released
- June 25, 2024
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Fantasy, Paranormal
- Series
- Riftborn #4
- ISBN
- 9781039444980
How to listen to Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4 free
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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 Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4 audiobook?
Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4 runs 11.5 hours unabridged. At 1.5× speed that drops to roughly 7.7 hours.
Is the Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4 audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4?
Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4 is narrated by Matthew Wolf.
Is Promise of Vipers: An Urban Fantasy Thriller: Riftborn, Book 4 worth listening to at 1.5× speed?
At 1.5× you'd finish in about 7.7 hours, saving 3.8 hours.