The Books Insiderindependent audiobook data
The 4th Secret by R.D. Shah

The 4th Secret: Audiobook

Book 2 of the Harker Chronicles series

According to The Books Insider's catalog data, The 4th Secret runs 16.6 hours as an unabridged audiobook, narrated by Peter Noble (about 11 hours at 1.5× playback speed).

16.6listening hrs
Paranormalstore shelf
2020released
Free for new listeners

The instrument When will you finish it?

Based on 16.6 hours of listening.

Days to finish The 4th Secret at common listening paces
Your paceYou'll finish in
30 min / day34 days
1 hour / day17 days
2 hours / day9 days
1 hour / day at 1.5×12 days

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

What our data says

  • At 16.6 hours, it runs longer than 94% of the 8,772 Paranormal audiobooks in our catalog.

Catching up on The Harker Chronicles

This is book 2. Book 1 runs 13.8 hours before it; books 1 to 3 run 43.5 hours in all.

BookTitleLength
1Relics13.8 hrs
2The 4th Secret16.6 hrs
3The Last Judgement13.1 hrs

About as long, on the Paranormal shelf

374 Paranormal 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 4th Secret is book 2 of R.D. Shah's Harker Chronicles series: a 16.6-hour unabridged recording, read by Peter Noble, released December 15, 2020, on the Paranormal shelf.

The listen at a glance

Length
16.6 hrs
Narrated by
Peter Noble
Released
December 15, 2020
Format
Unabridged audiobook
Language
English
Store shelves
Paranormal
Series
The Harker Chronicles #2
ISBN
9781666544466

How to listen to The 4th Secret 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 4th Secret as an audiobook?

The 4th Secret runs 16.6 hours unabridged. At 1.5× speed that drops to roughly 11 hours.

Is The 4th Secret free as an audiobook?

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

Who narrates The 4th Secret?

The 4th Secret is narrated by Peter Noble.

Is The 4th Secret worth listening to at 1.5× speed?

At 1.5× you'd finish in about 11 hours, saving 5.5 hours.