I'm a sucker for a beauty and the beast retellings. I first read this one in 2016 and I still have such a soft spot for it. Nyx was promised to the Gentle Lord, prince of demons since she was born, and she's been training to kill him since she could walk. While this, obviously, has a fair amount of similarities to other beauty and the beast style tales, there's actually a few major differences that I really enjoy.

Unlike a lot of 'chosen ones', Nyx isn't gunning to sacrifice herself for the good of her family. In fact, she's resentful towards her father and sister, and angry at the world. She hates fiercely, and that makes me love her even more. And there's Ignifex, who isn't quite what we'd expect from our 'beast'. I really loved his development, and I liked the use of the 'hearts' and the complex magical concepts threaded throughout the book.

I also highly recommend the audiobook.