This book is based on vampires who have killed, and are still trying to remain faithful to their humanity. The story psychologically brings you into their thought process. Including why they've sinned. All in hopes that their remorse about it will eventually be removed from their mental psyche. ...however, there is a darker plot revolving around the Vampire Monarchy. How it is involved is the true question. Especially the involvement with the House of Blood. There is a lot to be said about this type of emotional side to a vampire. Since most vampires are depicted as ferocious killers, sexual sinners, and disregarding all their formal humanity. this book will bring a whole re-evaluation to why some vampires still struggle.