This was a very fun romance. Emily is on her way to becoming one heck of a bluestocking, and she's proud of it. She reads about anything and everything - which I always like in a character - and it's given her a unique perspective on quite a few things. She's also a reformist. She wants to abolish slavery and punish those that are still illegally buying and selling them. When her goals of finding information on a slave trader interfere with an investigation in process she finds herself caught up in quite an adventure.
Blackstone is a spy. He's trying to find who has been trading English secrets to the French and suddenly Emily is in his way. He finds he rather likes her there - it's making his life interesting. But he owes a debt to her father and finds his wishes don't align with his mission for a change. So he writes a new mission - the Miss Mirren Mission.
Watching these two dance around their growing feelings was actually very fun. It didn't get overly tedious as they both discussed why they would never marry. It was just a part of who they were. As this romance involves spies - there is quite a bit of adventure and intrigue mixed in and it merges just about seamlessly with the romance until they are all tied together.
Such a fun historical with a lot of really great characters. Hopefully, I get to see a few of them again when book two comes out.
*This book was received in exchange for an honest review*