This moves slow, but there's also a lot going on here. My biggest criticism is that the mystery elements didn't really work for me: I don't know if the reveal about Angharad was supposed to be surprising, but I called it from very early on in the book!
But I loved Effy and Preston, I loved the creepy vibes, and the themes about trauma, misogyny, prejudice, and bigotry were all done very well.
The romance wasn't "enemies to lovers" and they weren't really even rivals either. But it still got me! Despite the flaws, something about this just made me love it!