Chemistry is everything...

A past kiss with Miss Olivia Norley should be barely a memory for Marlowe Drake, the Duke of Thornstock. After all, there are countless debutantes for a handsome rakehell to charm beyond a young lady whose singular passion is chemistry - of the laboratory type. But Thorn has not forgotten - or forgiven - the shocking blackmail scheme sparked by that single kiss. Now Thorn's half-brother, Grey, has hired the brilliant Miss Norley for her scientific expertise in solving a family mystery. And the once-burned Thorn, suspicious of her motives, vows to follow her every move...

For Olivia, determining whether arsenic poisoning killed Grey's father is the pioneering experiment that could make her career - and Thorn's constant presence is merely a distraction. But someone has explosive plans to derail her search. Soon the most unexpected discovery is the caring nature of the reputed scoundrel beside her - and the electricity it ignites between them...