I feel like the concept was really interesting and cool but it lacked depth, I would have liked the author to explore the magical concept more because it really was interesting especially with White London. Now I didn't really care for the characters at all , I thought they were kind of one dimensional, especially the twins, I find they were so cruel without a resonance kind of like your classic disney villain. My thoughts change  but only with Kell, all that stuff with his brother make me actually  care, I like him and Lila as a duo, they're cute,  but I feel like Lila really lacked a purpose and I know she wants to be a pirate and all that, but I feel like she's missing something, even though she's fun. Also, the ending was rushed and a bit stupid, the solution came out of nowhere.