The Books Insiderindependent audiobook data
Spirit of Steel by Jessica Barberi

Spirit of Steel: Audiobook

Book 4 of the Fires of an Empire series

According to The Books Insider's catalog data, the Spirit of Steel audiobook runs 12 hours unabridged, narrated by Christopher Curtis (about 8 hours at 1.5× playback speed).

12listening hrs
Fantasystore shelf
2025released
Free for new listeners

The instrument When will you finish it?

Based on 12 hours of listening.

Days to finish Spirit of Steel at common listening paces
Your paceYou'll finish in
30 min / day24 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 12 hours, it runs longer than 75% of the 12,109 Fantasy audiobooks in our catalog.

Catching up on Fires of an Empire Saga

This is book 4. Books 1 to 3 run 25.5 hours before it; books 1 to 4 run 37.5 hours in all.

BookTitleLength
1Fire From Ashes8.9 hrs
2Waves of a Tempest7.6 hrs
3Forged in Flames9 hrs
4Spirit of Steel12 hrs

About as long, on the Fantasy shelf

1,751 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

Spirit of Steel is book 4 of Jessica Barberi's Fires of an Empire series: a 12-hour unabridged recording, read by Christopher Curtis, released March 24, 2025, on the Fantasy and Epic Fantasy shelves.

The listen at a glance

Length
12 hrs
Narrated by
Christopher Curtis
Released
March 24, 2025
Format
Unabridged audiobook
Language
English
Store shelves
Fantasy, Epic Fantasy
Series
Fires of an Empire Saga #4
ISBN
9798992678611

How to listen to Spirit of Steel 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 Spirit of Steel audiobook?

Spirit of Steel runs 12 hours unabridged. At 1.5× speed that drops to roughly 8 hours.

Is the Spirit of Steel audiobook free?

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

Who narrates Spirit of Steel?

Spirit of Steel is narrated by Christopher Curtis.

Is Spirit of Steel worth listening to at 1.5× speed?

At 1.5× you'd finish in about 8 hours, saving 4 hours.