Fourth Wing Tops Amazon's 2025 Kindle Bestsellers

The Empyrean series made waves with its latest installment, Onyx Storm, earlier this year, propelling all three titles to the top of Amazon's Kindle bestsellers list for 2025. The series' meteoric rise began after Fourth Wing's explosive debut in 2023, fueled largely by BookTok's enthusiastic reception. This romantic fantasy phenomenon has since dominated nearly every major bestseller chart.

Onyx Storm's powerful impact demonstrates Rebecca Yarros' ability to captivate new audiences through her masterful blend of fantasy and romance. With Amazon now developing a Fourth Wing TV adaptation, the Empyrean series could potentially surpass even Harry Potter's legendary popularity if executed well.

Print Editions Continue Their Success

Onyx Storm (Deluxe Limited Edition)

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While dominating Kindle charts, the Empyrean series also claims multiple spots in Amazon's top-selling physical books of 2025. Both the deluxe and standard editions of Onyx Storm rank in the top 10, with Fourth Wing maintaining its position in the top 25.

Only the release of Suzanne Collins' new Hunger Games novel temporarily displaced Onyx Storm from the top fiction spot. However, with growing numbers discovering the series through Fourth Wing, we may see another shift before 2025 concludes.

Fourth Wing and Iron Flame Available on Kindle Unlimited

Kindle Unlimited

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Kindle Unlimited subscribers can currently enjoy the first two Empyrean novels at no additional cost. Readers eager to start the series should download Fourth Wing and Iron Flame through their Kindle accounts before these titles potentially rotate out of the subscription service.