A perfectly ok time-pass. I think it is more erotica than historical. There is no relationship whatsoever to speak of, which is not a problem if one is looking for heat in a novel. I rarely have luck with fallen women as heroines. And this one is no exception.
The hero andrew was a widower and punished himself for his wife's death by isolating himself and rejecting life's more enjoyable pursuits. Lysandra the heroine came to him through a courtesan who did this sort of matching. Neat idea. The relationship started quickly and I was grateful for that. But the story did not convince me why a recluse like Andrew would change his mind just because he saw Lysandra in the garden. I know that falling in love is sometimes a matter of seconds but something else has to happen to convince me that this is more than a passing affection. They jumped from being complete strangers (one a woman fallen on hard times having to sell herself to survive and the other a man who had locked himself away from women and happiness because he lost his wife/child) to bed partners very soon and the sexual activities quickly evolved into something rather risque. While I find it interesting, I did not necessarily want to read about all the different positions and ways to have sex. So I am probably just the wrong audience.