The Books Insiderindependent audiobook data
The Mysterious Four by R. J. F.

The Mysterious Four: Audiobook

Book 5 of the Tales of the Multiverse series

According to The Books Insider's catalog data, The Mysterious Four runs 8.1 hours as an unabridged audiobook, narrated by R. J. F. (about 5.4 hours at 1.5× playback speed).

8.1listening hrs
Science Fictionstore shelf
2025released
Free for new listeners

The instrument When will you finish it?

Based on 8.1 hours of listening.

Days to finish The Mysterious Four at common listening paces
Your paceYou'll finish in
30 min / day17 days
1 hour / day9 days
2 hours / day5 days
1 hour / day at 1.5×6 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 8.1 hours, it is shorter than 56% of the 13,269 Science Fiction audiobooks in our catalog.

Catching up on Tales of the Multiverse

This is book 5. Books 1 to 4 run 21.5 hours before it; books 1 to 5 run 29.6 hours in all.

BookTitleLength
1Monster versus Mortal5 hrs
2Sarah5.3 hrs
3Scar5.6 hrs
4Planet of Shadows5.7 hrs
5The Mysterious Four8.1 hrs

About as long, on the Science Fiction shelf

1,780 Science Fiction 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 Mysterious Four is book 5 of R. J. F.'s Tales of the Multiverse series: a 8.1-hour unabridged recording, read by R. J. F., released June 12, 2025, on the Science Fiction shelf.

The listen at a glance

Length
8.1 hrs
Narrated by
R. J. F.
Released
June 12, 2025
Format
Unabridged audiobook
Language
English
Store shelves
Science Fiction
Series
Tales of the Multiverse #5
ISBN
9798318194030

How to listen to The Mysterious Four 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 free

Questions listeners ask

How long is The Mysterious Four as an audiobook?

The Mysterious Four runs 8.1 hours unabridged. At 1.5× speed that drops to roughly 5.4 hours.

Is The Mysterious Four free as an audiobook?

Yes, for new listeners: the trial starts you with three free audiobooks.

Who narrates The Mysterious Four?

The Mysterious Four is narrated by R. J. F..