The Darkest King had good moments. I liked Sunny and the ideas behind unicorn shifters. I imagine that Evelina and Axel have a story in the works, and that we'll see Sable again. There were also some nice fan-service moments in the epilogue. But I wanted more emphasis on story; there was a lot of action and information dumped in the final chapter that I would have liked earlier on/spread throughout the book. I also don't remember the stories (and I could be wrong) being this violent. The torture was too much for me. Lastly, kind of a spoiler:

Spoiler

there was too much "penis-in-vagina-sex is the only real sex." William and Sunny were having sex all along