There are 2 books in the Four Kingdoms Duology series.
The Four Kingdoms Duology series does not have a new book coming out soon. The latest book, To Steal the Sun (Book 2), was published in July 2024.
The first book in the Four Kingdoms Duology series, To Ride the Wind, was published in May 2024.
The Four Kingdoms Duology series primarily falls into the Fantasy Romance genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.