Without Fail: Audiobook
Book 6 of the Cobalt Security series
According to The Books Insider's catalog data, the Without Fail audiobook runs 4.6 hours unabridged, narrated by Declan Winters (about 3.1 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 4.6 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 10 days |
| 1 hour / day | 5 days |
| 2 hours / day | 3 days |
| 1 hour / day at 1.5× | 4 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 4.6 hours, it is shorter than 85% of the 4,552 LGBTQ+ (Romance) audiobooks in our catalog.
Catching up on Cobalt Security
This is book 6. Books 1 to 5 run 26.2 hours before it; books 1 to 6 run 30.8 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | Without Warning | 6.9 hrs |
| 2 | Without Fear | 5.1 hrs |
| 3 | Without Limits | 4.6 hrs |
| 4 | Without Regrets | 4.9 hrs |
| 5 | Without Him | 4.8 hrs |
| 6 | Without Fail | 4.6 hrs |
More narrated by Declan Winters
Declan Winters narrates 61 unabridged audiobooks in our catalog, 447 hours in all.
About as long, on the LGBTQ+ (Romance) shelf
255 LGBTQ+ (Romance) 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
Without Fail is book 6 of Reese Knightley's Cobalt Security series: a 4.6-hour unabridged recording, read by Declan Winters, released August 31, 2026, on the LGBTQ+ (Romance) and LGBTQ+ (Fiction) shelves.
The listen at a glance
- Length
- 4.6 hrs
- Narrated by
- Declan Winters
- Released
- August 31, 2026
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- LGBTQ+ (Romance), LGBTQ+ (Fiction)
- Series
- Cobalt Security #6
- ISBN
- 9798331978549
How to listen to Without Fail 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 Without Fail audiobook?
Without Fail runs 4.6 hours unabridged. At 1.5× speed that drops to roughly 3.1 hours.
Is the Without Fail audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Without Fail?
Without Fail is narrated by Declan Winters.