Florence, 1914. A mysterious stranger known as The Wolf leaves an infant with the sisters of Santo Spirito. A tiny silver key hidden in her wrappings is the one clue to the child's identity. . . . Fifteen years later, young Rosa must leave the nuns, her only family, and become governess to the daughter of an aristocrat and his strange, frightening wife. Their house is elegant but cursed, and Rosa-blessed with gifts beyond her considerable musical talents-is torn between her desire to know the truth and her fear of its repercussions. All the while, the hand of Fascism curls around beautiful Italy, and no citizen is safe. Rosa faces unimaginable hardship: her only weapons her intelligence, intuition, and determination . . . and her extraordinary capacity for love.