The Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal: Audiobook
Book 4.5 of the Trials of Apollo series
According to The Books Insider's catalog data, The Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal runs 1.5 hours as an unabridged audiobook, narrated by Erin Cahill (about 1 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 1.5 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 3 days |
| 1 hour / day | 2 days |
| 2 hours / day | 1 day |
| 1 hour / day at 1.5× | 1 day |
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 1.5 hours, it is shorter than 56% of the 3,228 Fairy Tales & Folklore (Kids) audiobooks in our catalog.
About as long, on the Fairy Tales & Folklore (Kids) shelf
121 Fairy Tales & Folklore (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 Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal is book 4.5 of Rick Riordan's Trials of Apollo series: a 1.5-hour unabridged recording, read by Erin Cahill, released May 5, 2020, on the Fairy Tales & Folklore (Kids) shelf.
The listen at a glance
- Length
- 1.5 hrs
- Narrated by
- Erin Cahill
- Released
- May 5, 2020
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Fairy Tales & Folklore (Kids)
- Series
- The Trials of Apollo #4.5
- ISBN
- 9780593291214
How to listen to The Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal 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 Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal as an audiobook?
The Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal runs 1.5 hours unabridged. At 1.5× speed that drops to roughly 1 hours.
Is The Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal?
The Trials of Apollo Camp Jupiter Classified (An Official Rick Riordan Companion Book): A Probatio's Journal is narrated by Erin Cahill.