!!!!! I loved this so much! 
 First of all, the pacing was really good. The chapters were short but packed a punch, and it was told in a way that I couldn't put it down. "I'll just read another chapter, they're only little!" 
 The characters were absolutely outstanding. I loved Kell and Rhy, and I surprisingly found myself really liking Lila. She was honestly unlike any other character I've read about, and I really enjoyed her refreshing take on humour and badass-ness. Kell was just so adorable, and Rhy was charming and flirty and irresistible, though I'm definitely hoping we get to see more of him in the following books! 
 I also loved the magic system. Again, the idea of the different Londons was just so unique, and the world building was done in a way that wasn't intimidating or confusing, especially with it being an adult novel. I understood it easily, but at the same time it was complex and I still feel as though I need to know more. 
 The plot, the world, and how the characters fit into both of them was just sheer genius, and I can't wait to dive into the next book of the series. 
 (Also, I loved how sexuality kind of just, wasn't a big thing? It was just 'he flirts with guys and girls and he's royal and it's cool'. Loved it.)