Mulford, Philippa Greene

While getting to know her half-sister who comes to spend the summer, twelve-year-old Charmaine gradually discovers that she and Cissa have a lot to learn from each other.

After their father dies and they move to another town, sixteen-year-old twins learn to adapt to change and to form individual identities.

While trying to deal with the possibility that their mother may remarry, sixteen-year-old Abbey and her brother and sister are changed by a visit from their sophisticated thirteen-year-old cousin Katherine.