The Sicilian inheritance

When Sara Marsala's beloved great-aunt Rosie passes away, she leaves Sara a valuable piece of land in Sicily, but there's a catch: the locals refuse to acknowledge the rightful owner of the deed, and if Sara wants the land she must first uncover the truth about what happened to her great-grandmother, Serafina Marsala. Because Rosie didn't think Serafina died of illness as family lore states. Rosie believed Serafina was murdered, and she wants Sara to prove it.