The Dark Lord's Guide to Dating (And Other War Crimes) by Tiffany Hunt

This books is VERY like the Assistant to the Villain series although Arabella doesn't end up with Kazimir by choice. Instead, she is kidnapped because of her bloodline. The Dark Lord needs someone with magical blood to help unlock an ancient artifact. However, it seems like the artifact needs more than just marriage to have the powers the Dark Lord needs. Kazimir doesn't want to trick Arabella but the attraction they feel toward each other isn't necessarily a bad thing so a lot of Happy Fun Times ensue. It's just a darn shame that every time they have sex, they destroy a little more of the castle. 

Three and a half stars

Guides to Villainy and Love #1

This book came out May 24, 2025

Followed by The Dark Lord's Guide to Honeymooning (and Other Acts of Tyranny)

Borrowed as ebook from Libby

Opinions are my own