How to Negotiate With a Nightmare

In this cozy romantasy, the villain finally gets the girl.

I have three problems:
One: The hot guy I met in the bushes (don’t ask) has magic so cold and dangerous it should come with a warning label.
Two: My family’s dragging me to a ball hosted by the Nightmare King—you know, the cruel monster who rules the dark half of town where the sun literally never rises.
Three: Turns out Hot Bush Guy and Nightmare King are the same person. And when our magic touches? We make flowers. Which would be romantic if I wasn’t supposed to be terrified of him.
Eryx Nightshade has spent ten years alone in his castle, haunted by a voice in his head that demands blood and revenge. Until I walked into his spell and the voice went from “destroy everyone” to “she’s pretty, don’t mess this up.”
Now he’s thrown a ball to find me. I’m trapped in pink tulle and sparkly sneakers. And every time we touch, our magic does things that shouldn’t be possible.
He thinks I’m his salvation.
I think he might be mine.
But I’m supposed to marry someone to save my family’s dying magic, and he’s got a revenge plot ten years in the making.
Falling for the Nightmare King wasn’t part of anyone’s plan.
Especially the nightmare’s.