The Proposition of the Season (Fairfax Sisters Book 3)

Details:

After three disastrous seasons, bookish Josephine Fairfax has given up on finding her perfect hero. But when her younger sister becomes engaged to the vastly unsuitable Lord Huntingly, Josephine takes matters into her own hands. To save her sister, she proposes marriage to one of the most dangerous gentlemen in the ton—and may find a love story of her own.