The Empyrean series has soared to new heights with the 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 gained significant traction when "Fourth Wing" was first published in 2023, largely due to its viral success on Booktok. Since then, Rebecca Yarros' blend of fantasy and romance in this romantasy series has captivated a wide audience, leading to its dominance on bestseller charts.
The release of "Onyx Storm" has introduced a wave of new readers to the series, showcasing the infectious appeal of Yarros' storytelling. With the announcement of a "Fourth Wing" TV series greenlit at Amazon, the Empyrean series has the potential to eclipse even the Harry Potter franchise in popularity if it continues to play its cards right.
The Physical Editions Are Popular Too
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While the Empyrean series dominates the Kindle charts, it also holds a strong position on Amazon's list of top-selling physical books for 2025. Both the deluxe and standard editions of "Onyx Storm" rank in the top 10, with "Fourth Wing" maintaining a spot in the top 25. The only book to surpass "Onyx Storm" in the fiction category is the newly released book by Suzanne Collins in the Hunger Games series. However, with an influx of new readers starting with "Fourth Wing," the rankings could shift again before the year's end.
Answer See ResultsFourth Wing and Iron Flame are Part of Kindle Unlimited
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For those eager to dive into the series, the first two books, "Fourth Wing" and "Iron Flame," are available for free on the Kindle app with a Kindle Unlimited subscription. Subscribers can easily log into their Kindle account to download these books before they potentially leave the subscription service.
