Fourth Wing Books Top Amazon Kindle Best Sellers in 2025

The Empyrean series has taken the literary world by storm, with the latest installment, Onyx Storm, released earlier this year, pushing all three books to the top of Amazon's Kindle best sellers list for 2025. The series gained significant traction following the debut of Fourth Wing in 2023, largely propelled by the viral influence of Booktok. This romantasy series has since grown tremendously, consistently topping bestseller charts.

The release of Onyx Storm has attracted a surge of new readers, underscoring the captivating power of Rebecca Yarros' storytelling. Her unique blend of fantasy and romance appeals to a wide audience, making the series a phenomenon. With the announcement of a Fourth Wing TV series in development at Amazon, the Empyrean series is poised to potentially surpass even the iconic Harry Potter franchise in popularity, provided it leverages this opportunity 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

Not only does the Empyrean series dominate the Kindle charts, but it also features prominently on Amazon's top-selling physical books list for 2025. Both the deluxe and standard editions of Onyx Storm rank within the top 10, while Fourth Wing holds a steady position in the top 25. The only recent book to challenge Onyx Storm's dominance is Suzanne Collins' new addition to the Hunger Games series. However, with more readers discovering the series through Fourth Wing, it's possible that the rankings could shift again by the end of 2025.

Fourth Wing and Iron Flame are Part of Kindle Unlimited

Kindle Unlimited

35. See subscription options. 36. See it at Amazon

For those eager to dive into the series, the first two books, Fourth Wing and Iron Flame, are currently available for free on the Kindle app through a Kindle Unlimited subscription. Subscribers can easily log into their Kindle account to download these titles before they potentially leave the subscription service.