It would have been helpful to know the backstories on several of the characters. I felt a little befuddled at times. There are two wealthy, matchmaking sisters involved from the first two books.
Eliza Montrose had a child out of wedlock at 17, seven years before the events of this story. The child was placed in a foundling home, although she was told he went to a loving family. She still yearns to find him. She's been living with her coldhearted aunt ever since, a woman who never fails to tell her what a sinner she is.
While at a picnic at the Earl of Quamby's estate, she performs a heroic act, drawing the admiration of Rufus Patmore. Mutual attraction is almost instantaneous, complicated by the fact that Eliza is engaged to George Bramley, the earl's heir, and a lascivious toad of a man. The only reason she continues with the engagement is because her son is a frequent visitor to the estate, brought from the foundling home to play with other children.
The plot is loaded with twists and turns. Eliza faces every kind of social roadblock to be found at the time, and she's constantly desperate to figure out what to do. There is a happy ending, but getting there is full of angst. Eliza's engagement with Bramley was left hanging. How did he react to what she did? Were there ever any consequences for his actions? What about her devious cousin, Susana? What was her reaction when the truth came out? There are more books in the series, but the next one takes place more than 10 years later, so these strings will probably be left untied.