There are 3 books in The Lady Helen Trilogy series.
The Lady Helen Trilogy series does not have a new book coming out soon. The latest book, The Dark Days Deceit (Book 3), was published in November 2018.
The first book in The Lady Helen Trilogy series, The Dark Days Club, was published in February 2016.
The Lady Helen Trilogy series primarily falls into the Fantasy genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.