"Brilliant mathematician Frankie Turner knows how to calculate the odds. So when her sister goes missing and all leads point to an exclusive gambling hell, her best bet is to play governess-under-cover for London's most notorious gambler...who just happens to also be the town's most ineligible bachelor. When her snooping uncovers a sinister plot to entangle women the ton deems troublemakers, Frankie can't rely solely on her secret network of governess spies--she needs to win over devilishly handsome Jasper Jones to get his help. All without gambling away her heart."--Page 4 of cover.