Lisa Kleypas starts the series with a lot of details about everything and once it is started then there is no time spent on the details. The author tries to get the details out of the way as quickly as possible so that she can come to the long story which she has in mind. Those who like to skip a few things at the starting chapter of a novel would remain confused in this case as they will miss all the details about the situation and characters in the tale.
A noblewoman gets caught in a dangerous scheme and she thinks that she will lose her life for sure if she does not take any bold steps. Thus she makes a clever scheme and fakes her own death after which the rivals think that she is dead and they stop searching for her. Now the second step was to change her identity so that she can live a free life afterward. She was lucky that after changing her identity she was able to find a British lord who was ready to provide her shelter as well.
Thus the problems were solved very easily but it does not mean that the troubles were over. The woman and the lord who was keeping her had secrets that they wanted to keep buried. If those secrets leak at any point in their life then the nicely poised life will get rooted out once again.
Rosalyn Landor does not start the narration slowly because he likes remaining charged up as the narrator all the time. Most people think that Marrying Winterborne and Devil in Spring appeared to be slow because of the narration. Here that issue has been resolved forever now.