Starts off well, then loses momentum.
I would award "The Lady Risks All" 5.0 for detailed scene setting, fascinating and convincing minor characters and good background stories on all the characters. But I would award 2.0 for unconvincing aspects of the plot and a lack of intensity between the hero and heroine. So I gave the book a 3.0.
Here's some of my problems with the book -- I got little sense of what the heroine and hero were actually like -- they seemed to share a mutual interest in pictures and gardens, but that was about it. I didn't have a clear idea of why the hero would be interested in the heroine, other than her looks, assertiveness and the fact that he had been single for a long time. They eventually developed some interests in common, but I wouldn't have thought them "well suited" in the beginning.
I became more interested in many of the secondary characters, such as the hero's difficult sister-in-law and outspoken sisters, instead of the hero and heroine.
Second, I started to find the sex scenes dull -- I normally like sex scenes, and am happy if there are a lot of them, but these sex scenes didn't seem to advance the plot or the characters' relationship. It was as if the author thought "time to put a sex scene in this chapter."
Third, for a rigidly respectable heroine, whose respectability obsession is mentioned repeatedly, and whose sister had run off as a teen and returned home dying of "disease" -- the heroine didn't seem to be worried about pregnancy, "disease," her reputation, the hero's initial failure to propose marriage to her, or that a future husband might ask why she wasn't a virgin. That struck me as historically inaccurate.
I loved Stephanie Laurens' novella, "The Seduction of Sebastian Trantor," and heartily recommend it. I will also look for other books by her. This book is mildly interesting but doesn't display her talent as well as the other work by her that I read.