The Books Insiderindependent audiobook data
The Secret of Secrets by Dan Brown

The Secret of Secrets: Audiobook

Book 6 of the Robert Langdon series

According to The Books Insider's catalog data, The Secret of Secrets runs 22.8 hours as an unabridged audiobook, narrated by Paul Michael (about 15.2 hours at 1.5× playback speed).

22.8listening hrs
Action & Adventure (Fiction)store shelf
2025released
Free for new listeners

The instrument When will you finish it?

Based on 22.8 hours of listening.

Days to finish The Secret of Secrets at common listening paces
Your paceYou'll finish in
30 min / day46 days
1 hour / day23 days
2 hours / day12 days
1 hour / day at 1.5×16 days

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

What our data says

  • At 22.8 hours, it runs longer than 97% of the 2,447 Action & Adventure (Fiction) audiobooks in our catalog.

About as long, on the Action & Adventure (Fiction) shelf

63 Action & Adventure (Fiction) audiobooks in our catalog run within 10% of this length. The most popular on the store:

Computed from 170,512 English-language unabridged audiobooks in The Books Insider catalog (store data read October 21, 2026). Lengths are the store's own running times. Methodology.

About this listen

The Secret of Secrets is book 6 of Dan Brown's Robert Langdon series: a 22.8-hour unabridged recording, read by Paul Michael, released September 9, 2025, on the Espionage and Action & Adventure (Fiction) shelves.

The listen at a glance

Length
22.8 hrs
Narrated by
Paul Michael
Released
September 9, 2025
Format
Unabridged audiobook
Language
English
Store shelves
Espionage, Action & Adventure (Fiction), Books with Buzz
Series
Robert Langdon #6
ISBN
9781529190878

How to listen to The Secret of Secrets 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.

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Questions listeners ask

How long is The Secret of Secrets as an audiobook?

The Secret of Secrets runs 22.8 hours unabridged. At 1.5× speed that drops to roughly 15.2 hours.

Is The Secret of Secrets free as an audiobook?

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

Who narrates The Secret of Secrets?

The Secret of Secrets is narrated by Paul Michael.

Is The Secret of Secrets worth listening to at 1.5× speed?

At 1.5× you'd finish in about 15.2 hours, saving 7.6 hours.