So Speaks the Heart — Joyce Carlow

LOVERS FOR A MOMENT IN TIME...
Amid the exotic wonders of the Byzantine empire in 523 A.D., the beautiful healer Leandra is set apart. Her dreams foretell the future and see the truth. And the truth she sees about Alexander, a dashing charioteer, is that he will be her beloved -- and her doom ... as they are swept into royal intrigues and erotic interludes, where nothing matters but their love, and nothing can stop it, not even death....

OR FOREVERMORE?
Centuries later, in a France swept by plagues and battles for power, a beautiful handmaiden to the king's sister is haunted by dreams she cannot explain. And somewhere in this war-torn land a man is searching for her, driven by a vision of his own. Her name is Leona, and she and Philip de Valor, her king's bitter rival, are part of a destiny begun hundreds of years earlier. Now they meet as enemies, yet are consumed by a passion so reckless and forbidden it could cost them their lives. Or give them one last chance to change history itself as they join their hearts in a union that is unbreakable and, perhaps this time, everlasting....