A Devil of a Duke by Madeline Hunter

HE MAY BE A DEVIL
He’s infamous, debaucherous, and known all over town for his complete disregard for scandal, and positively irresistible seductions. Gabriel St. James, Duke of Langford, is obscenely wealthy, jaw-droppingly handsome, and used to getting exactly what he wants. Until his attention is utterly captured by a woman who refuses to tell him her name, but can’t help surrendering to his touch . . .

BUT SHE’S NO ANGEL EITHER . . .
Amanda Waverly is living two lives—one respectable existence as secretary to an upstanding lady, and one far more dangerous battle of wits—and willpower—with the devilish Duke. Langford may be the most tempting man she’s ever met, but Amanda’s got her hands full trying to escape the world of high-society crime into which she was born. And if he figures out who she really is, their sizzling passion will suddenly boil over into a much higher stakes affair . . .