The Books Insiderindependent audiobook data
Fortress of Ambrose by J. Elle

Fortress of Ambrose: Audiobook

Book 3 of the House of Marionne series

According to The Books Insider's catalog data, the Fortress of Ambrose audiobook runs 17.1 hours unabridged, narrated by Leeanna Albanese and Philip Hernandez and others (about 11.4 hours at 1.5× playback speed).

17.1listening hrs
Tough Topicsstore shelf
2025released
Free for new listeners

The instrument When will you finish it?

Based on 17.1 hours of listening.

Days to finish Fortress of Ambrose at common listening paces
Your paceYou'll finish in
30 min / day35 days
1 hour / day18 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 17.1 hours, it runs longer than 99% of the 4,472 Tough Topics audiobooks in our catalog.

Catching up on House of Marionne

This is book 3. Books 1 to 2 run 29.7 hours before it; books 1 to 3 run 46.8 hours in all.

BookTitleLength
1House of Marionne14.2 hrs
2Shadows of Perl15.5 hrs
3Fortress of Ambrose17.1 hrs

About as long, on the Tough Topics shelf

47 Tough Topics 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

Fortress of Ambrose is book 3 of J. Elle's House of Marionne series: a 17.1-hour unabridged recording, read by Leeanna Albanese, Philip Hernandez and André Santana and others, released October 14, 2025, on the Tough Topics and Romance (Teen & YA) shelves.

The listen at a glance

Length
17.1 hrs
Narrated by
Leeanna Albanese, Philip Hernandez, André Santana, Carlotta Brentan, Michael Crouch, Vikas Adam
Released
October 14, 2025
Format
Unabridged audiobook
Language
English
Store shelves
Tough Topics, Romance (Teen & YA), Mystery & Thriller
Series
House of Marionne #3
ISBN
9798217080786

How to listen to Fortress of Ambrose 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 Fortress of Ambrose audiobook?

Fortress of Ambrose runs 17.1 hours unabridged. At 1.5× speed that drops to roughly 11.4 hours.

Is the Fortress of Ambrose audiobook free?

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

Who narrates Fortress of Ambrose?

Fortress of Ambrose is narrated by Leeanna Albanese, Philip Hernandez, André Santana and Carlotta Brentan and others.

Is Fortress of Ambrose worth listening to at 1.5× speed?

At 1.5× you'd finish in about 11.4 hours, saving 5.7 hours.