Venice, 1643. Isabella, fifteen, longs to sing in Monteverdi's Choir, but only boys (and castrati) can do that. Her singing teacher, Margherita, introduces her to a new wonder: opera Then Isabella finds Margherita murdered. And now people keep trying to kill Margherita's handsome rogue of a son, Rafaele. Was Margherita killed so someone could steal her saffron business? Or was it a disgruntled lover, as Margherita-unbeknownst to Isabella-was one of...