The Books Insiderindependent audiobook data
The Secret Chapter by Genevieve Cogman

The Secret Chapter: Audiobook

Book 6 of the Invisible Library series

According to The Books Insider's catalog data, The Secret Chapter runs 11.2 hours as an unabridged audiobook, narrated by Kristin Atherton (about 7.5 hours at 1.5× playback speed).

11.2listening hrs
Historical (Science Fiction & Fantasy)store shelf
2019released
Free for new listeners

The instrument When will you finish it?

Based on 11.2 hours of listening.

Days to finish The Secret Chapter at common listening paces
Your paceYou'll finish in
30 min / day23 days
1 hour / day12 days
2 hours / day6 days
1 hour / day at 1.5×8 days

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

What our data says

  • At 11.2 hours, it is shorter than 51% of the 2,729 Historical (Science Fiction & Fantasy) audiobooks in our catalog.

Catching up on The Invisible Library series

This is book 6. Books 1 to 5 run 65 hours before it; books 1 to 8 run 102.4 hours in all.

BookTitleLength
1The Invisible Library12.1 hrs
2The Masked City12.4 hrs
3The Burning Page12.7 hrs
4The Lost Plot12.3 hrs
5The Mortal Word15.4 hrs
6The Secret Chapter11.2 hrs
7The Dark Archive12 hrs
8The Untold Story14.2 hrs

About as long, on the Historical (Science Fiction & Fantasy) shelf

530 Historical (Science Fiction & Fantasy) 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 Secret Chapter is book 6 of Genevieve Cogman's Invisible Library series: a 11.2-hour unabridged recording, read by Kristin Atherton, released November 14, 2019, on the Historical (Science Fiction & Fantasy) shelf.

The listen at a glance

Length
11.2 hrs
Narrated by
Kristin Atherton
Released
November 14, 2019
Format
Unabridged audiobook
Language
English
Store shelves
Historical (Science Fiction & Fantasy)
Series
The Invisible Library series #6
ISBN
9781529000597

How to listen to The Secret Chapter 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 Secret Chapter as an audiobook?

The Secret Chapter runs 11.2 hours unabridged. At 1.5× speed that drops to roughly 7.5 hours.

Is The Secret Chapter free as an audiobook?

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

Who narrates The Secret Chapter?

The Secret Chapter is narrated by Kristin Atherton.

Is The Secret Chapter worth listening to at 1.5× speed?

At 1.5× you'd finish in about 7.5 hours, saving 3.7 hours.