I loved this book so much I really loved the library theme of it a unique idea that I have never read about before. I really liked the characters especially Elisabeth,Nathaniel and Silas I liked how the relationship between them developed at a not too slow pace it was really interesting to read about. I liked Silas even if he is a demon he was very interesting to read about and he really cared for Nathaniel since he had been with him his whole life and had come to really love him. I liked Elisabeth very much she was the strong female character that is very interesting to read about she will do anything to protect people and even sacrifice other things for other people. I really liked Nathaniel at first he just seems like your typical male character then you start to see the depths of him what made him what he is now he is so well written. I really liked the plot of this book it started with a murder and a false accusation and became a race against time to save so many people. So overall I loved this book will read more by this author when there is more.