The Memory Index: Audiobook
Book 1 of the Memory Index series
According to The Books Insider's catalog data, The Memory Index runs 10.8 hours as an unabridged audiobook, narrated by Tyler Kwiatkowski and Sophia Buller (about 7.2 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 10.8 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 22 days |
| 1 hour / day | 11 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 10.8 hours, it runs longer than 64% of the 5,647 Sci-Fi, Fantasy & Paranormal audiobooks in our catalog.
Catching up on The Memory Index
This is book 1. Books 1 to 2 run 21.9 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | The Memory Index | 10.8 hrs |
| 2 | The Recall Paradox | 11.1 hrs |
About as long, on the Sci-Fi, Fantasy & Paranormal shelf
1,309 Sci-Fi, Fantasy & Paranormal 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 Memory Index is book 1 of Julian Ray Vaca's Memory Index series: a 10.8-hour unabridged recording, read by Tyler Kwiatkowski and Sophia Buller, released August 9, 2022, on the Sci-Fi, Fantasy & Paranormal shelf.
The listen at a glance
- Length
- 10.8 hrs
- Narrated by
- Tyler Kwiatkowski, Sophia Buller
- Released
- August 9, 2022
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Sci-Fi, Fantasy & Paranormal
- Series
- The Memory Index #1
- ISBN
- 9780840700759
How to listen to The Memory Index 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 Memory Index as an audiobook?
The Memory Index runs 10.8 hours unabridged. At 1.5× speed that drops to roughly 7.2 hours.
Is The Memory Index free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Memory Index?
The Memory Index is narrated by Tyler Kwiatkowski and Sophia Buller.
Is The Memory Index worth listening to at 1.5× speed?
At 1.5× you'd finish in about 7.2 hours, saving 3.6 hours.