"What is a lady's formula for love? Bring together one brilliant noblewoman and an enigmatic bodyguard. Mix in a measure of danger and attraction. Heat over the warmth of humor and friendship, and the result is more than simple chemistry--it's elemental. Lady Violet Hughes is keeping secrets. First, she founded London's first social club for ladies to provide sanctuary for England's most brilliant female scientists. Second, she is using her genius on a clandestine mission for the Crown. But the biggest secret of all? Her feelings for protection officer Arthur Kneland. The most guarded of men, Kneland learned the hard way to put duty first. But the more time spent in the company of Violet and the eccentric club members, the more his best intentions go up in flames. Literally. When a shadowy threat infiltrates Violet's laboratories, endangering her life and her work, scientist and bodyguard will find all their theories put to the test--and learn that the most important discoveries are those of the heart."