The Empyrean: Fourth Wing Iron Flame Onyx Storm
Book profile · reviewed 19 September 2026

Fourth Wing

by Rebecca Yarros · 2023 · 517 pages · Romantasy · The Empyrean

Fourth Wing is Empyrean romantasy at 4/5 Spicy: a sorting-hat war college where half the riders die, and two major on-page scenes wait until the back half.

I told myself I'd just read a chapter before bed. It's 4 AM and a dragon just roasted someone alive and I think I'm in love with a boy who definitely wants me dead.

Mood · Obsessive Cliffhanger
Dragons Enemies to lovers Back-half heat Empyrean Full spice guide →

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15 seconds · then you will not stop
I can't decide if I want to strangle you or kiss you.
Rebecca Yarros · Fourth Wing
0:00–0:15muted preview
4/5 back-half dragon college · 517 pages, two scenes, do not DNF at 100 Kindle before this tab cools Audible trial often $0
I told myself I'd just read a chapter before bed. It's 4 AM and a dragon just roasted someone alive and I think I'm in love with a boy who definitely wants me dead.
Feels like: I told myself I'd just read a chapter before bed. It's 4 AM and a dragon just roasted someone alive and I think I'm in love with a boy who definitely wants me dead.
TL;DR: Two major on-page scenes, both in the back half. The slow burn is the whole point. If you DNF at page 100 because nothing's happened yet — trust the process.
Mood
Obsessive
Spice
🌶️ 4/5 Spicy
Pacing
Propulsive
Length
517 pages
Ending
Cliffhanger
Lane
Romantasy
Series
The Empyrean

Fourth Wing bibliographic record

Title
Fourth Wing
Series / position
The Empyrean
Author
Rebecca Yarros
Publisher
Entangled: Red Tower Books
First published
2023-05-02
ISBN-13
9781649374042
ISBN-10 / ASIN
1649374046
Pages
517 (this edition)
Language
English
Genre
Romantasy
Spice (SBC)
4/5 Spicy · explicit on-page

How Fourth Wing actually reads

I told myself I'd just read a chapter before bed. It's 4 AM and a dragon just roasted someone alive and I think I'm in love with a boy who definitely wants me dead.

Feels like a sorting hat ceremony where half the kids die before dinner, and your roommate might be the son of the rebellion's worst traitor.

Two major on-page scenes, both in the back half. The slow burn is the whole point. If you DNF at page 100 because nothing's happened yet — trust the process.

Who should read Fourth Wing tonight

Swipe right if…

  • You want enemies-to-lovers with a love interest who actually feels dangerous
  • You love a slow burn that rewards you in the back half with real spice
  • You want a physically vulnerable protagonist who wins through wits, not muscle
  • Training academies, dragon bonds, and "if you're not chosen you die" stakes pull you in
Yes — see Kindle or Audible below

Swipe left if…

  • You hate instalust — the attraction lands before the trust does
  • You find training-academy tropes repetitive after Throne of Glass
  • Graphic on-page death of side characters you liked is a dealbreaker
  • You want a standalone and hate being locked into a 5-book commitment
A Court of Mist and Fury instead →

Where the heat actually lands

Two major on-page scenes, both in the back half. Slow burn is the point. Full breakdown: How spicy is Fourth Wing?

0–25%

Tension with teeth

Xaden is introduced and Violet's first thought is that he wants her dead. There's no heat yet — just charged looks, sharp dialogue, and Violet wondering if she should sleep with a knife.

25–50%

Proximity gets dangerous

Training sessions. Sparring scenes that are absolutely sparring scenes and also absolutely not. One heated kiss that sets the terms. The word "mine" starts getting used and you know what's coming.

50–70%

The first real scene

Around the 65% mark — post-Threshing, after something almost kills her — the book finally delivers. It's explicit, extended, and emotionally loaded. Then it happens again, better.

70–100%

Heat turns into devastation

Intimacy becomes a weapon the plot uses against both of them. The final 20% is not about the spice — it's about whether what they built survives the politics Yarros was hiding under it.

The Empyrean series order

Start here. Later titles appear only when they already have a profile.

Fourth Wing · this book4/5 Spicy

How do you want this in your head in the next ten minutes?

If you already know

See the set

Do not bundle out of panic. Read twenty pages first.

See editions →

Content heads-up

Graphic violence, war trauma, explicit sexual content, on-page deaths (including side characters you like), chronic illness and ableism, blood and gore, poisoning, political persecution, discussions of execution. Standard romantasy consent is present in the spice scenes — it's intentional and positive — but the violence around it is not softened.

Tropes: Enemies to Lovers · Morally Gray MMC · Dragons

Books like Fourth Wing — pick the rail

Spice only

How spicy is Fourth Wing?

Fourth Wing is 4/5 Spicy — Two major on-page scenes, both in the back half. The slow burn is the whole point. If you DNF at page 100 because nothing's happened yet — trust the process..

Fourth Wing questions

How spicy is Fourth Wing?

4/5 Spicy. Two major on-page scenes, both in the back half. Slow burn first. Full spice guide →

Is Fourth Wing a series?

Yes. The Empyrean. This profile is book-one heat only; later-book spice is shown on those titles when rated.

Is there an audiobook of Fourth Wing?

Yes. Empyrean book 1, 517 pages, 4/5 back-half heat. Tagged Audible sample from this leaf.

Does Fourth Wing have a happy ending?

A cliffhanger. Fourth Wing is part of The Empyrean, 517 pages, 4/5 Spicy — the arc stays open, so plan on the next book.

Last chance to stop scrolling

Fourth Wing is ready when you are.

When you are ready, start with Kindle, paperback, or Audible.

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Fourth Wing · 4/5 Spicy
4/5. Heat is the back half.
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