An enthralling historical novel of Renaissance Italy Naples 1633 Aqua Tofana - One drop to heal. Three drops to kill. Giulia Tofana longs for more responsibility in her mother's apothecary business, but Mamma has always been secretive and refuses to tell her the hidden keys to her success. But the day Mamma is arrested for the poisoning of the powerful Duke de Verdi, Giulia is shocked to uncover the darker side of her trade. Giulia...