The Nightsilver Promise (Celestial Mechanism Cycle #1): Audiobook
Book 1 of the Celestial Mechanism Cycle series
According to The Books Insider's catalog data, The Nightsilver Promise (Celestial Mechanism Cycle #1) runs 6.9 hours as an unabridged audiobook, narrated by Nicola Barber (about 4.6 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 6.9 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 14 days |
| 1 hour / day | 7 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 6.9 hours, it runs longer than 69% of the 7,923 Mystery & Fantasy audiobooks in our catalog.
More narrated by Nicola Barber
Nicola Barber narrates 145 unabridged audiobooks in our catalog, 1,332 hours in all.
About as long, on the Mystery & Fantasy shelf
1,138 Mystery & Fantasy audiobooks in our catalog run within 10% of this length. The most popular on the store:
- A Wrinkle in Time
- Warriors #1: Into the Wild
- The City of Ember: The First Book of Ember
- Woof: A Bowser and Birdie Novel
- The Hive Queen (Wings of Fire #12)
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 Nightsilver Promise (Celestial Mechanism Cycle #1) is book 1 of Annaliese Avery's Celestial Mechanism Cycle series: a 6.9-hour unabridged recording, read by Nicola Barber, released November 8, 2021, on the Mystery & Fantasy and Animals & Nature (Kids) shelves.
The listen at a glance
- Length
- 6.9 hrs
- Narrated by
- Nicola Barber
- Released
- November 8, 2021
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mystery & Fantasy, Animals & Nature (Kids)
- Series
- Celestial Mechanism Cycle #1
- ISBN
- 9781338780536
How to listen to The Nightsilver Promise (Celestial Mechanism Cycle #1) 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 Nightsilver Promise (Celestial Mechanism Cycle #1) as an audiobook?
The Nightsilver Promise (Celestial Mechanism Cycle #1) runs 6.9 hours unabridged. At 1.5× speed that drops to roughly 4.6 hours.
Is The Nightsilver Promise (Celestial Mechanism Cycle #1) free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Nightsilver Promise (Celestial Mechanism Cycle #1)?
The Nightsilver Promise (Celestial Mechanism Cycle #1) is narrated by Nicola Barber.