How does he ever protect a woman whose greatest danger is herself? Especially when that woman is his best friend's sister -- the very woman he wants but he just can't have. Jemima St. Vincent may now be the sister of a duke, but she is determined to make a name for herself as a renowned chemist, even if she has to put out a few fires along the way. She has no time for her brother's best friend, who seems intent on aggravating...