An Unexpected Pleasure by Candace Camp

American Megan Mulcahey is convinced that English nobleman Theo Moreland killed her brother ten years ago. And now her sister is having dreams that her family believes that they should take revenge. Megan gets taken on as a tutor for the two youngest of the Moreland children, twin boys who get into mischief in every book of this series. She doesn't actually know as much as them in some subjects but she only needs to hang on long enough to find proof that Theo murdered Dennis. Unfortunately, she finds herself charmed by the family and falling in love with Theo.
The Moreland family is unusual and that means that Theo doesn't necessarily think that finding the tutor in his father's study means anything malicious. He is more amused than alarmed. It doesn't hurt that said tutor is beautiful. 
It took me a little bit to get into this book because the beginning was just a little slow. I was pretty much considering a DNF at around the 80 page mark but read the last 30 pages and decided to wade through. And it was worth it. Most of the real story action starts about three-quarters of the way in but you need a lot of the slog to really understand what is going on. Like all of the books in the Mad Moreland series, there is a lot of mystical-type stuff going on but bringing that in is when the book really started to get good.

Three stars
This book came out August 29th, 2006
Follows Winterset
Followed by His Sinful Touch
Hard copy I didn't keep
Opinions are my own