There are 2 books in The Shatter the Sky Duology series.
The Shatter the Sky Duology series does not have a new book coming out soon. The latest book, Storm the Earth (Book 2), was published in October 2020.
The first book in The Shatter the Sky Duology series, Shatter the Sky, was published in August 2019.
The Shatter the Sky Duology series primarily falls into the Fantasy genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.