I love this book! It is definitely my favorite book with Marguerite (except for TSP of course!).
Sir Percy takes on what is possibly his biggest challenge yet - rescuing the Dauphin of France. When a certain member of the League (who also happens to be related to our hero) falls in love with a French actress, Percy is caught by archenemy Chauvelin. Marguerite is not long in coming after him, and with all of these people depending on the SP, he may not be able to rescue himself. With Percy pitted against Chauvelin... well, things will get very interesting.
Things start off slowly, the main focus being on Armand. But the slow start doesn't last for long. With a great plot, a few Marguerite/Percy moments, and a tight conflict between our two favorite enemies, this book definitely rates five stars.