Lucas Delgado Guerrero’s skin is too brown and his accent too foreign for him to feel truly at home in England. Returning to Mexico, which he scarcely remembers, however, is hardly a choice. So he remains in London, publishing an illegal newspaper devoted to reformist and revolutionary causes. One of his most popular writers is the intriguing and mysterious Polly Dicax, who delivers sharp, witty screeds by messenger every week.

Wild and carefree Winifred Langston has nursed a crush on her best friend's older brother for years, but Conrad Pearce has never deigned to notice her. Little does she know that Conrad has been concealing his attraction to her beneath his stuffy, respectable exterior. But when Conrad hears of Freddie's plans for one last wild caper before she's sent to London for her first season, he's convinced to teach her a well-deserved lesson. He intercepts her disguised as a highwayman only to find he can't resist the sensual beauty hidden beneath the maddening hellion's exterior.

Mrs. Lydia Lewis has given up on broken promises. Marrying her soul mate only to be attacked during his heartbreaking absence, she finds refuge as an incognito ducal housekeeper. Captain Jacob Lewis is angry and hurt. Returning from military service to discover his spouse has vanished into thin air, he begins an almost hopeless search to bring her home. Can this star-crossed pair reclaim newlywed bliss?

Spirited debutante Lady Olivia McLeod, cherished daughter of the Duke and Duchess of Strathaven, has two interests: solving mysteries and winning the love of her rescuer and secret crush, the infamous Duke of Hadleigh. When Livy joins Lady Charlotte Fayne's charity for young ladies and discovers that it is a front for a covert investigative agency, she is thrilled. Livy dedicates herself to solving a deadly case. Little does she realize that the path to danger will also lead to her heart's deepest desire.

One should never judge a duke by his cover. As far as London society knows, Giles Drew, the Duke of Basingstoke, is everything a proper aristocrat ought to be. But when a notorious scandal sheet publishes details of Giles's questionable bedroom antics, only one bride can salvage his reputation. Prim and penniless, Francesca Stanhope has resigned herself to a season full of the ton's snickering—until the Duke of Basingstoke's dizzying courtship transforms her fate. Yet wedded bliss quickly turns into a clash of wills as Franny realizes her handsome duke is a devil in disguise.