Rockfall: Audiobook
Book 1 of the Tertiary Effects series
According to The Books Insider's catalog data, the Rockfall audiobook runs 12.9 hours unabridged, narrated by Kevin T. Collins (about 8.6 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 12.9 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 26 days |
| 1 hour / day | 13 days |
| 2 hours / day | 7 days |
| 1 hour / day at 1.5× | 9 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 12.9 hours, it runs longer than 81% of the 3,417 Apocalyptic & Dystopian audiobooks in our catalog.
Catching up on Tertiary Effects
This is book 1. Books 1 to 3 run 38.4 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Rockfall | 12.9 hrs |
| 2 | Storm Warning | 11.7 hrs |
| 3 | Bite of Frost | 13.8 hrs |
More narrated by Kevin T. Collins
Kevin T. Collins narrates 331 unabridged audiobooks in our catalog, 3,615 hours in all.
About as long, on the Apocalyptic & Dystopian shelf
474 Apocalyptic & Dystopian 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
Rockfall is book 1 of William Allen's Tertiary Effects series: a 12.9-hour unabridged recording, read by Kevin T. Collins, released April 28, 2020, on the Apocalyptic & Dystopian shelf.
The listen at a glance
- Length
- 12.9 hrs
- Narrated by
- Kevin T. Collins
- Released
- April 28, 2020
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Apocalyptic & Dystopian
- Series
- Tertiary Effects #1
- ISBN
- 9781705211748
How to listen to Rockfall 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 Rockfall audiobook?
Rockfall runs 12.9 hours unabridged. At 1.5× speed that drops to roughly 8.6 hours.
Is the Rockfall audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Rockfall?
Rockfall is narrated by Kevin T. Collins.
Is Rockfall worth listening to at 1.5× speed?
At 1.5× you'd finish in about 8.6 hours, saving 4.3 hours.