The Secret Key: Audiobook
Book 1 of the Agatha Oddly series
According to The Books Insider's catalog data, The Secret Key runs 6 hours as an unabridged audiobook, narrated by Aspen Reiss (about 4 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 6 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 12 days |
| 1 hour / day | 6 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 6 hours, it runs longer than 82% of the 14,091 Non-fiction (Kids) audiobooks in our catalog.
Catching up on Agatha Oddly
This is book 1. Books 1 to 3 run 18.6 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | The Secret Key | 6 hrs |
| 2 | Murder at the Museum | 6.2 hrs |
| 3 | The Silver Serpent | 6.4 hrs |
More narrated by Aspen Reiss
Aspen Reiss narrates 5 unabridged audiobooks in our catalog, 43 hours in all.
About as long, on the Non-fiction (Kids) shelf
1,224 Non-fiction (Kids) 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 Secret Key is book 1 of Lena Jones's Agatha Oddly series: a 6-hour unabridged recording, read by Aspen Reiss, released June 28, 2018, on the Mystery & Fantasy and Non-fiction (Kids) shelves.
The listen at a glance
- Length
- 6 hrs
- Narrated by
- Aspen Reiss
- Released
- June 28, 2018
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mystery & Fantasy, Non-fiction (Kids)
- Series
- Agatha Oddly #1
- ISBN
- 9780008211851
How to listen to The Secret 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 Secret Key as an audiobook?
The Secret Key runs 6 hours unabridged. At 1.5× speed that drops to roughly 4 hours.
Is The Secret Key free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Secret Key?
The Secret Key is narrated by Aspen Reiss.