Eternal: Sigma Sin, Book 2: Audiobook
Book 2 of the Sigma Sin series
According to The Books Insider's catalog data, the Eternal: Sigma Sin, Book 2 audiobook runs 9.7 hours unabridged, narrated by C.J. Grey and Mollie Stark (about 6.5 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 9.7 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 20 days |
| 1 hour / day | 10 days |
| 2 hours / day | 5 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 9.7 hours, it runs longer than 64% of the 7,690 Mystery audiobooks in our catalog.
Catching up on Sigma Sin
This is book 2. Book 1 runs 9.5 hours before it; books 1 to 4 run 38.2 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Saint: Sigma Sin, Book 1 | 9.5 hrs |
| 2 | Eternal: Sigma Sin, Book 2 | 9.7 hrs |
| 3 | Atone: Sigma Sin, Book 3 | 9.6 hrs |
| 4 | Revere: Sigma Sin, Book 4 | 9.3 hrs |
More narrated by C.J. Grey
C.J. Grey narrates 52 unabridged audiobooks in our catalog, 528 hours in all.
About as long, on the Mystery shelf
1,800 Mystery 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
Eternal: Sigma Sin, Book 2 is book 2 of Eva Simmons's Sigma Sin series: a 9.7-hour unabridged recording, read by C.J. Grey and Mollie Stark, released June 24, 2025, on the Mystery shelf.
The listen at a glance
- Length
- 9.7 hrs
- Narrated by
- C.J. Grey, Mollie Stark
- Released
- June 24, 2025
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mystery
- Series
- Sigma Sin #2
- ISBN
- 9798895392089
How to listen to Eternal: Sigma Sin, Book 2 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 Eternal: Sigma Sin, Book 2 audiobook?
Eternal: Sigma Sin, Book 2 runs 9.7 hours unabridged. At 1.5× speed that drops to roughly 6.5 hours.
Is the Eternal: Sigma Sin, Book 2 audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Eternal: Sigma Sin, Book 2?
Eternal: Sigma Sin, Book 2 is narrated by C.J. Grey and Mollie Stark.