There are 3 books in The Traitor's Trilogy series.
The Traitor's Trilogy series does not have a new book coming out soon. The latest book, The Traitor's Kingdom (Book 3), was published in July 2019.
The first book in The Traitor's Trilogy series, The Traitor's Kiss, was published in May 2017.
The Traitor's Trilogy series primarily falls into the Action Adventure genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.