I was intrigued by this novel's premise, but the execution left much to be desired. My greatest issue was with the characters.
While I could appreciate Anna's character on some level, Lady Susan failed to engage my sympathy. Not only did I think her too manipulative, but her history with Leo did not strike me as adequately horrifying (especially in light of Anna's history). As a widow and a member of the ton, I would have expected her to be more worldly in her knowledge and demeanor no matter her personal experience. This is why I didn't buy into her reasons for "punishing" Leo.
In regards to Leo, I knew going into the story that the author decided not to soften his perception or actions as a rake. However, no matter his dark history, I expected to feel a certain level of sympathy and understanding -- at the very least, a modicum of pity. This was not the case. His relationships with his friends and Isabelle were not satisfying, and I found him to be too gullible for my taste.
Finally, I could not find much in Isabelle to incite my sympathies. I understand that as a "ruined" female, her character is expected to be plagued with a measure of misfortune. However, I expected this misfortune to be addressed with some gumption and/or fortitude. Not so with Isabelle. Instead of taking the reins, Isabelle became a victim and remained a victim. For me, this was the most abhorrent aspect of this novel. When she realizes her steadfast feelings for Leo, she still caves to her friends. When she returns to her aunt and uncle's, Isabelle continues her monotonous and tedious lifestyle as a doormat. When she is turned out by said relatives, she prays for a rescuer of the male variety. Ultimately, when Leo interrupts Sutherland mid-seduction in order to win her back, Isabelle remains with Sutherland out of a misplaced sense of duty. Sutherland is the one who urges her to return to Leo.
When all is said and done, this novel's defects lie within the characters. Nevertheless, this novel received two stars for premise and writing style.