Doomsday Vault: Audiobook
Book 1 of the Clockwork Empire series
According to The Books Insider's catalog data, the Doomsday Vault audiobook runs 12.5 hours unabridged, narrated by Kim Bretton and Curt Bonnem (about 8.4 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 12.5 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 25 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 12.5 hours, it runs longer than 78% of the 13,269 Science Fiction audiobooks in our catalog.
Catching up on Clockwork Empire
This is book 1. Books 1 to 4 run 43 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Doomsday Vault | 12.5 hrs |
| 2 | The Impossible Cube | 10 hrs |
| 3 | The Dragon Men | 9.7 hrs |
| 4 | The Havoc Machine | 10.7 hrs |
More narrated by Kim Bretton
Kim Bretton narrates 83 unabridged audiobooks in our catalog, 734 hours in all.
About as long, on the Science Fiction shelf
1,768 Science Fiction 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
Doomsday Vault is book 1 of Steven Harper's Clockwork Empire series: a 12.5-hour unabridged recording, read by Kim Bretton and Curt Bonnem, released January 28, 2025, on the Science Fiction shelf.
The listen at a glance
- Length
- 12.5 hrs
- Narrated by
- Kim Bretton, Curt Bonnem
- Released
- January 28, 2025
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Science Fiction
- Series
- Clockwork Empire #1
- ISBN
- 9798855554823
How to listen to Doomsday Vault 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 Doomsday Vault audiobook?
Doomsday Vault runs 12.5 hours unabridged. At 1.5× speed that drops to roughly 8.4 hours.
Is the Doomsday Vault audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Doomsday Vault?
Doomsday Vault is narrated by Kim Bretton and Curt Bonnem.
Is Doomsday Vault worth listening to at 1.5× speed?
At 1.5× you'd finish in about 8.4 hours, saving 4.2 hours.