"New York Times bestselling author Daisy Goodwin returns with a story of the scandalous love affair between the most celebrated opera singer of all time and one of the richest men in the world. In the glittering and ruthlessly competitive world of opera, Maria Callas was known simply as la divina: the divine one. With her glorious voice, instinctive flair for the dramatic and striking beauty, she was the toast of the grandest opera houses in the world....