Sophia's story with Ross in Lady Sophia's Lover enthralled me when I read it, so when I had learned that her brother, Nick Gentry/John Sydney, was getting his own book, I was understandably excited. How excited? This excited. 
 Lisa Kleypas did not disappoint me with this book. I was a little nervous, thinking that there would be a lot of similarity between Nick's story and Sophia's story, but I was wrong, and thank God for that. I felt that Nick's story had a lot more depth to it than his sisters'. It was definitely a lot more darker, I know that much. In exchange for his life, Nick has agreed to Ross's idea of joining up with Bow Street. Even though he scoffs at the notion of having to answer to someone, Nick has clearly adapted to his situation and has even begun to like it - whether or not he'd admit to it. After saving a family from a burning home, Nick is sickened by all the attention and praise that he'd been getting that he immediately accepts a job offered to him -- anything to get him briefly away from London society. 
 His assignment is to find Charlotte Howard, a girl who's run away from the unwanted fiancee that her family has foisted upon her. Even though scores of people had been hired to find the lady in question, our hero is the only who manages to do so. He's fascinated by her from the moment they meet and when his identity is discovered and his reason for seeing her revealed, Nick hands her an ultimatum. Either go back to the fiancee (who believes that she is his property, by the way - ugh) or -- marry him. Of course, our girl decides to marry him. 
 It was interesting to watch these two struggle and fight against their attraction to the other. It was even more fascinating to see her try to help him through the new station in life that he's been handed, a role in society that Nick absolutely does not want, but does for the sake of her safety after her ex-fiancee decides that he must have her or else. The darker tone of this book is perfect for the situation at hand and you find yourself wishing them the best, hoping they get through whatever demons are plaguing their marriage. The happy ending is inevitable, of course, but the road they go down to get to that particular happy ending is addicting and makes you want to read this book over and over again to relive everything.