The third book in "The Empyrean" series by Rebecca Yarros will be released in January.Geography Photos/Universal Images Group via Getty ImagesRebecca Yarros' "Fourth Wing" and its sequel "Iron Flame" captivated readers.The third book in the series, "Onyx Storm," will hit bookshelves on January 21, 2025.It will explore Violet Sorrengail's expanding power and Xaden Riorson's struggle as a venin.After over a year of waiting, it's almost time for the release of "Onyx Storm," the next book in Rebecca Yarros' "The Empyrean" series.Yarros became an instant New York Times bestseller with "Fourth Wing" in April 2023, her novel about Violet Sorrengail, a student training to be a dragon rider at Basgiath War College in Navarre.She published its sequel, "Iron Flame," in November of the same year, which also hit the bestseller list as soon as it was released.Yarros plans for the series to include five installments.