There are 3 books in The Helier L'Eree Trilogy series.
The Helier L'Eree Trilogy series does not have a new book coming out soon. The latest book, Death of the Devil (Book 3), was published in November 1994.
The first book in The Helier L'Eree Trilogy series, Spawn of the Devil, was published in November 1993.
The Helier L'Eree Trilogy series primarily falls into the Historical genre.