REMEMBRANCE by Jude Deveraux

Best-selling romance novelist Hayden Lane has never been so obsessed with one of her heroes before -- so obsessed that she barely notices when her fiancé‚ breaks off their engagement. Hayden visits a psychic who tell her that in a past life she was a woman named Lady de Grey in Edwardian England. Hayden is so intrigued that when she meets a hypnotist at a dinner party she can't resist volunteering. But his trick goes wrong, and instead of merely remembering her lifetime as Lady de Grey, Hayden is whisked back to Edwardian time. The moment she awakens, she faints, due to the unfamiliar sensation of Lady de Grey's extremely tight corset. But soon Hayden will awaken again, to discover quite a different story about a woman history considered a trollop, a spectacular, brooding man...and the rapturous love that would be hers if she dared to open her heart to the most mysterious adventure of all...