I'm going to pretend this book didn't exist because I love love loved Caraval and Once Upon a Broken Heart. I loved the first third of this and the last third, but the middle was where the book took a turn. 
This novella included some darker romantic scenes which were unexpected  and pretty different to the vibe and content of other books in this world. I actually had to go and check that my audiobook hadn't somehow flipped to another story because it was so out of character