Once in a Blue Moon: Audiobook
Book 4 of the Forest Kingdom series
According to The Books Insider's catalog data, the Once in a Blue Moon audiobook runs 23.4 hours unabridged, narrated by John Keating (about 15.6 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 23.4 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 47 days |
| 1 hour / day | 24 days |
| 2 hours / day | 12 days |
| 1 hour / day at 1.5× | 16 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 23.4 hours, it runs longer than 97% of the 12,109 Fantasy audiobooks in our catalog.
More narrated by John Keating
John Keating narrates 176 unabridged audiobooks in our catalog, 1,982 hours in all.
About as long, on the Fantasy shelf
282 Fantasy 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
Once in a Blue Moon is book 4 of Simon R. Green's Forest Kingdom series: a 23.4-hour unabridged recording, read by John Keating, released March 28, 2014, on the Fantasy shelf.
The listen at a glance
- Length
- 23.4 hrs
- Narrated by
- John Keating
- Released
- March 28, 2014
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Fantasy
- Series
- Forest Kingdom #4
- ISBN
- 9781490620466
How to listen to Once in a Blue Moon 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 Once in a Blue Moon audiobook?
Once in a Blue Moon runs 23.4 hours unabridged. At 1.5× speed that drops to roughly 15.6 hours.
Is the Once in a Blue Moon audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Once in a Blue Moon?
Once in a Blue Moon is narrated by John Keating.
Is Once in a Blue Moon worth listening to at 1.5× speed?
At 1.5× you'd finish in about 15.6 hours, saving 7.8 hours.