Set forty years after the Keller Wars, the Ashridge Duology can be read without reading The Five Angels Trilogy, however, you will have a better understanding of the world, and some of the other characters that make an appearance in the duology. The Ashridge Duology is Aiden Mathewson and Jessika Valenti’s story of having a second chance and having to fight for not only your crown and throne, but also your heart.