Whispering Shadows — Freda Lightfoot

Abigail Carter feels stifled as companion to Emilia Goodenough, and the responsibility of her wayward sister Polly. Then Emilia's nephew, Carl Montegne, sweeps the ladies off to Italy to help him search for the long lost family fortune. But even a romantic castello doesn't stem the friction between them - until the quest suddenly turns to danger, and Abigail discovers the extent of her feelings.