Grandpa's Secret: Part 3: Audiobook
Book 3 of the Dexter Olsson Adventures: Grandpa's Secret series
According to The Books Insider's catalog data, the Grandpa's Secret: Part 3 audiobook runs 5.6 hours unabridged, narrated by Grandpa Spuds Oxley Aniara AI (about 3.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 5.6 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 5.6 hours, it runs longer than 72% of the 2,649 Action & Adventure (Kids) audiobooks in our catalog.
About as long, on the Action & Adventure (Kids) shelf
267 Action & Adventure (Kids) audiobooks in our catalog run within 10% of this length. The most popular on the store:
- The Jungle Book
- Five Children and It
- The Compound
- House with the Twisting Passage
- Treasure Hunters
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
Grandpa's Secret: Part 3 is book 3 of Michael Wiander's Dexter Olsson Adventures: Grandpa's Secret series: a 5.6-hour unabridged recording, read by Grandpa Spuds Oxley Aniara AI, released October 24, 2025, on the Action & Adventure (Kids) shelf.
The listen at a glance
- Length
- 5.6 hrs
- Narrated by
- Grandpa Spuds Oxley Aniara AI
- Released
- October 24, 2025
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Action & Adventure (Kids)
- Series
- Dexter Olsson Adventures: Grandpa's Secret #3
- ISBN
- 9789190075807
How to listen to Grandpa's Secret: Part 3 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 Grandpa's Secret: Part 3 audiobook?
Grandpa's Secret: Part 3 runs 5.6 hours unabridged. At 1.5× speed that drops to roughly 3.7 hours.
Is the Grandpa's Secret: Part 3 audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Grandpa's Secret: Part 3?
Grandpa's Secret: Part 3 is narrated by Grandpa Spuds Oxley Aniara AI.