Sisters Under the Skin — Marcia Willett

Stepsisters Olivia and Emily are at daggers drawn until the arrival of their half-sister, Rosie, when they are briefly united in their efforts against her. Rosie can look after herself, though, and cunningly throws secret spanners in the works for her sisters. Only when Rosie is on the brink of stealing the family home from under them years later do the women put their childish ways completely behind them. But is it too late to save their family home?