Book Verdict

Is Iron Flame Worth Reading? Honest Review | SpinToRead

Iron Flame by Rebecca Yarros: an honest verdict. The sequel to Fourth Wing delivers on romance and dragon lore — but does the plot hold up? Our unfiltered take.

7.8
Out of 10
Plot
7/10
Characters
8/10
Romance
9/10
World-Building
7/10
Prose
6/10

What Works

  • The romance between Violet and Xaden remains genuinely compelling
  • Dragon bond scenes are some of the best in the series
  • Higher emotional stakes than Fourth Wing
  • Answers questions readers had since the first book
  • Pacing in the second half is much stronger than the first

What Doesn't

  • First third feels slow compared to Fourth Wing's propulsive opening
  • Some new character introductions feel rushed
  • The military academy setting recedes — some readers miss it
  • Ending will divide readers who want resolution vs. those who want setup for book 3

Who Is This For?

Read It If You...

• You loved Fourth Wing and want more Violet and Xaden

• You enjoy enemies-to-lovers romance with actual tension

• You don't mind slower opening chapters

• You're invested in the Empyrean world's mythology

Skip It If You...

• You found Fourth Wing's plot thin and wanted more substance

• You prefer standalone novels to ongoing series

• You're looking for literary fantasy with complex prose

• You were hoping the military academy plot would deepen

What Iron Flame Gets Right

Rebecca Yarros built Fourth Wing around a very specific energy: the hostile tension between Violet Sorrengail and Xaden Riorson, the constant threat of death in a school that teaches dragon riders, and a romance that earns its heat by making the relationship genuinely complicated. Iron Flame delivers more of that — and in its best moments, exceeds it.

The dragon bond material is expanded significantly. Tairn and Andarna's storylines add genuine emotional weight that Fourth Wing was occasionally too busy to develop. Some of the series' most memorable scenes are here.

Where It Struggles

The opening third is a pace problem. Fourth Wing opens at a sprint. Iron Flame walks for a hundred pages before it finds its rhythm. Readers who powered through Fourth Wing in two days may find themselves stalling in the early chapters.

The plot mechanics are shakier than the character work. Yarros is a romance writer first, and the romance elements remain excellent throughout. But the fantasy plot — factions, rebellions, revelations — requires a certain amount of handwaving that readers with high fantasy standards will notice.

The Verdict

Iron Flame is a worthy sequel that will satisfy Fourth Wing readers and frustrate anyone who picked it up hoping for improvement in the areas where the first book fell short. If you loved Fourth Wing, read it. If you were on the fence after Fourth Wing, Iron Flame won't change your mind.

Score: 7.8/10. Essential for series fans; optional for the fantasy-curious.

Common Questions

Yes — Iron Flame picks up immediately where Fourth Wing ends and assumes complete knowledge of the first book's events and characters.
Iron Flame is 623 pages. The audiobook is approximately 28 hours.
Yes — Onyx Storm (2025) is the third book in the Empyrean series.
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