The Fourth Wing Books are Dominating Amazon's Kindle Best Sellers List in 2025 So Far

The Empyrean series has soared to new heights with the recent release of *Onyx Storm* earlier this year, propelling all three books to the top of Amazon's Kindle best sellers list for 2025. The series' initial surge in popularity came with the release of *Fourth Wing* in 2023, largely fueled by the Booktok community. Since then, this captivating romantasy series has not only captured the hearts of readers but also dominated most best seller charts.

The release of *Onyx Storm* has attracted a wave of new readers, a testament to the viral appeal of Rebecca Yarros' storytelling. Her unique blend of fantasy and romance has captivated a wide audience. With Amazon greenlighting a *Fourth Wing* TV series, the Empyrean series is poised to potentially surpass even the Harry Potter franchise in popularity, provided it capitalizes on this momentum effectively.

The Physical Editions Are Popular Too

Onyx Storm (Deluxe Limited Edition)

1. See it at Amazon
2. See it at Barnes and Noble
3. See it at Target

While the Empyrean series dominates the Kindle charts, it also holds a strong position on Amazon's top-selling physical books list for 2025. Both the deluxe and standard editions of *Onyx Storm* rank within the top 10, with *Fourth Wing* maintaining a spot in the top 25. The only book to momentarily eclipse *Onyx Storm* is Suzanne Collins' new *Hunger Games* release. However, with more readers discovering the series through *Fourth Wing*, *Onyx Storm* could reclaim its position as the top fiction book before the year ends.

Fourth Wing and Iron Flame are Part of Kindle Unlimited

Kindle Unlimited

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For those eager to dive into the series, *Fourth Wing* and *Iron Flame* are currently available for free on the Kindle app with a Kindle Unlimited subscription. Subscribers can log into their Kindle account and download these titles before they are potentially removed from the service.