Assumption: Audiobook
Book 1 of the Underground Kings series
According to The Books Insider's catalog data, the Assumption audiobook runs 7.4 hours unabridged, narrated by Fiona Aarington and Sebastian Grove (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 57% of the 16,241 Modern audiobooks in our catalog.
Catching up on Underground Kings
This is book 1. Books 1 to 3 run 24.2 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Assumption | 7.4 hrs |
| 2 | Obligation | 8.4 hrs |
| 3 | Distraction | 8.4 hrs |
More narrated by Fiona Aarington
Fiona Aarington narrates 7 unabridged audiobooks in our catalog, 51 hours in all.
About as long, on the Modern shelf
2,855 Modern 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
Assumption is book 1 of Aurora Rose Reynolds's Underground Kings series: a 7.4-hour unabridged recording, read by Fiona Aarington and Sebastian Grove, released June 27, 2023, on the Modern and Mystery shelves.
The listen at a glance
- Length
- 7.4 hrs
- Narrated by
- Fiona Aarington, Sebastian Grove
- Released
- June 27, 2023
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Modern, Mystery
- Series
- Underground Kings #1
- ISBN
- 9781666641240
How to listen to Assumption 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 Assumption audiobook?
Assumption runs 7.4 hours unabridged. At 1.5× speed that drops to roughly 4.9 hours.
Is the Assumption audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Assumption?
Assumption is narrated by Fiona Aarington and Sebastian Grove.