Warning: SPOILERS ahead for Fourth Wing, Iron Flame, and Onyx Storm by Rebecca Yarros.The Empyrean Series is among the biggest romantasy offerings out there, and all three of its current books have their strengths and weaknesses. But overall, Rebecca Yarros’ story blends romance, political intrigue, and dragons to impressive effect. It’s no wonder that Fourth Wing became one of the most popular books on BookTok upon its 2023 release. The BookTok sensation has gone on to produce two sequels: Iron Flame, which hit shelves around six months later, and Onyx Storm. Onyx Storm is one of 2025’s biggest fantasy releases, and its Goodreads score is a positive sign for the novel.

https://screenrant.com/empyrean-series-books-ranked/