The first book in the
Empyrean series,
Fourth Wing, was published in April 2023 by Red Tower Books. In May, it landed fourth on the
Libro.fm bestseller list. By late June, it was a number one bestseller on Amazon. As of August 2024, the book had spent 65 weeks on
The New York Times Best Seller list, including in the top position. It also landed on the Libro.fm bestseller list in the second spot in August and third spot in September. Additionally, it was a top-ten book club pick for September. In October and November 2023,
Fourth Wing was on
USA Today's list of the top ten bestselling books. In March 2024 the title was shortlisted for the Young Adult Jury Award of the
German Youth Literature Awards which was awarded at the
Frankfurt Book Fair in October. The sequel,
Iron Flame, was released in November 2023. In July 2023,
Waterstones indicated that it became the "fastest selling pre-order title in a single day on [the] website with [the] special edition selling out in just seven hours". In October 2023, it was announced that
Michael B. Jordan's Outlier Society and
Amazon MGM Studios purchased the rights to adapt the novel series into a television series. Yarros and
Entangled Publishing's Liz Pelletier will serve as non-writing executive producers. The third book,
Onyx Storm, was released in January 2025 which sold more than 2.7 million copies within the first week, according to
The New York Times. Yarros has indicated that the series will ultimately include five books. == Honors ==