Moonlight Madness — Sandra Jones

While visiting Wales, Rance Kingsley, Viscount Waldenham, receives a warning that his daughter will soon be kidnapped by Spanish enemies. Before he can aid her, Rance tumbles into a mysterious portal to the future. His only hope is to find his soulmate, the key to returning. However his curse continues when all signs point to Tess Hartman, a straight-laced teacher, as his match.
After a cheating boyfriend, the only male Tess wants in her life is Dante, a troubled teen she would like to adopt. To bond with the boy, Tess brings him on a class field trip to Britain. But the Shakespeare experience becomes too real when sexy, eccentric Rance seduces her.
When Tess falls for Rance's kisses and travels with him across four centuries, she's convinced he's made a mistake. How could she love a man who deceived her, separating her from everything she cares about, a man with MOONLIGHT MADNESS?