If you are a fan of the entire mortal instrument world then you will love this book. I really did. If you only have read the mortal instrument then this series will require a lot of patience and outside knowledge because it gives spoilers and needs knowledge of the previous series and basically sets up the next series. I loved it in so many ways. My fav character was simon and always has been and always will be. I also grew to both love isabella and his relationship and also alec and magnus. I also loved seeing tessa and jem again and i am excited to see where the next series goes. Overall it is five star book if you only read this one series then it is like a four star book.