Violent moneylender Corona Mundt warned Sophie not to come back to Venice, so she shouldn't be guarding Archduchess Isabella at the Carnival - any more than Isabella should fall for louche, penniless, would-be librettist Larry da Ponte. And once the two of them get together, it's only a matter of time before Sophie comes face to face with her worst enemy. "Serene" is the third in a series of novels from the era of Mozart and Maria Theresia.