There is no combination of words that can truly describe how much I loved this book! From the moment I read the first sentence, I was totally and completely hooked. The world (or should I say worlds?) that Schwab has created is just so breathtakingly stunning! I haven't read such a beautifully crafted fantasy in a long time and I really couldn't have loved this book more. Not only is the world rich and vibrant but the characters are just phenomenal as well! It had a perfect balance between characters I loved, Kell and Lila, and characters that I loved to hate, Holland and the Dane twins. I also really loved how the magic worked and the concept of the different Londons, it was truly unlike anything I've read before! I could honestly go on and on about how much I loved this book but I'm going to leave it at that and immediately dive into A Gathering of Shadows!