4.5 Stars :) Best selling author Grace Burrowes has once again delivered a phenomenal historical romance. When a Duchess Says I Do was -as the fabulous author Mary Balogh put it- "Smart, sexy, and oh-so romantic". Duncan Wentworth tried to help a damsel in distress once and things did not go well, he promised not to do so again. Matilda is clever, sweet, and very capable of taking care of herself. But she is in trouble and in need of a 'knight in shinning armor'. She is running away from problems that could destroyed her life and those who discover her secrets. When their paths cross Duncan can't resist it. His good and honorable heart takes over. He has to help her. I absolutely loved their friendship and courtship. Duncan and Matilda were perfect for each other. Duncan's never ending patience and faith on Matilda is praiseworthy and made their slow burn romance all the more touching. It was absolutely adorable how they talked to eac