The Master Key: Audiobook
According to The Books Insider's catalog data, The Master Key runs 3.7 hours as an unabridged audiobook, narrated by Judy Bieber (about 2.5 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 3.7 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 8 days |
| 1 hour / day | 4 days |
| 2 hours / day | 2 days |
| 1 hour / day at 1.5× | 3 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 3.7 hours, it is shorter than 85% of the 12,109 Fantasy audiobooks in our catalog.
More narrated by Judy Bieber
Judy Bieber narrates 7 unabridged audiobooks in our catalog, 29 hours in all.
About as long, on the Fantasy shelf
242 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
The Master Key is an audiobook by L. Frank Baum: a 3.7-hour unabridged recording, read by Judy Bieber, released January 8, 2015, on the Fantasy shelf.
The listen at a glance
- Length
- 3.7 hrs
- Narrated by
- Judy Bieber
- Released
- January 8, 2015
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Fantasy
How to listen to The Master Key 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 Master Key as an audiobook?
The Master Key runs 3.7 hours unabridged. At 1.5× speed that drops to roughly 2.5 hours.
Is The Master Key free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Master Key?
The Master Key is narrated by Judy Bieber.