This book is a regency romance which begins with a prologue set in December 1813, but most of the action takes place the following year. It is the sequel to the same author's novel
Lady Allerton's Wager and picks up the major loose ends left behind by that story.
While most romances tells the story of a courtship, this one tells how the hero and heroine repaired a marriage which got off to a truly disastrous start.
"Lady Allerton's wager" introduced two West Country families - the Mostyns and the Trevithicks - who have been at daggers drawn since they backed opposite sides in the civil war.
Ironically, however, all three of the the current generation of Mostyns and Trevithicks find themselves irresistibly drawn to a member of the rival clan. Beth, Lady Allerton, and cousin of the current Lord Mostyn, found herself involved with Marcus, Lord Trevithick, the new head of that family.
Christopher, (Kit), Lord Mostyn found himself attracted to Marcus's sister Eleanor. And his sister Charlotte was equally attracted to Lord Trevithick's cousin Justin.
If you're going to read both books I would recommend reading "Lady Allerton's wager" first because the main action of this book follows directly on from the end of that one.
In the prologue of this book, "The Notorious Marriage" the hero, Kit Mostyn, elopes with Eleanor Trevithick and marries her. But within 24 hours of the wedding he disappears, leaving her apparently abandoned and in an impossible position. (I'm not giving anything away here which isn't stated on the back of the book.)
The main body of the story resumes five months later, when Kit returns from what the reader knows was actually a secret government mission. He has a genuine (if terribly improbable) explanation for everything that happened. However, Eleanor is desperately hurt, and in no mood to listen. His new in-laws are furious about the way she has been treated and the challenge of rescuing his marriage looks like Mission Impossible.
Fortunately he is to get some assistance from the most unlikely quarter ...
An entertaining follow-on to the first book, continuing the story of a cast of mostly likeable characters. A little darker in tone but still some good use of humour, and I enjoyed this book.