Iron Flame audiobook: length and what to know before you start

Iron Flame picks up right after Fourth Wing, so it only works if you've heard the first book.

Listen to Iron Flame for free

Audiobooks.com has a 30-day free trial that lets you pick Iron Flame as your free audiobook, plus 2 bonus titles. Start free and cancel anytime!

Listen Now Sponsored link. After the trial it's $14.95 a month unless you cancel. Catalog availability and terms can change, so confirm Iron Flame and the current trial details on their site.

It's the longest of the popular romantasy listens, which makes it good value if you want something to last weeks.

Author: Rebecca Yarros
Length: 28 hr 17 min
Series: The Empyrean, book 2
Genre: Romantasy

Who it's for

You finished Fourth Wing and want the story to continue.
You like long audiobooks that you can live in for weeks.
You prefer ongoing series over standalones.

What to listen to next

Fourth Wing by Rebecca Yarros — Book 1; listen first.
A Court of Thorns and Roses by Sarah J. Maas — Another fantasy-romance series with a huge following.
Throne of Glass by Sarah J. Maas — Assassin protagonist, long series, big world. Listen on Audiobooks.com ↗
From Blood and Ash by Jennifer L. Armentrout — Slow-burn romantasy with a mysterious chosen heroine. Listen on Audiobooks.com ↗

Good to know: Same mature content level as book 1: violence and explicit romance.

Listen to Iron Flame for free

Audiobooks.com has a 30-day free trial that lets you pick Iron Flame as your free audiobook, plus 2 bonus titles. Start free and cancel anytime!

Listen Now Sponsored link. After the trial it's $14.95 a month unless you cancel. Catalog availability and terms can change, so confirm Iron Flame and the current trial details on their site.

Where to go next: Fourth Wing audiobook or Audiobooks like Fourth Wing.

Keep exploring

Last reviewed 2026-10-28. Picks are our own opinion. Lengths come from Audiobooks.com listings where shown.