Rosie and Phoebe have been best friends since they met on the Divorce Express, shuttling between their parents on weekends. So when Rosie's mom falls in love with Phoebe's dad, and they all move in together, it seems perfect. But Rosie soon learns that having Phoebe as a sister and having Phoebe as a friend are two very different things. And having an extra parent around isn't easy either. Rosie always thought that she and Phoebe would make great sisters. But can their friendship survive being in the same house?"An honest approach to problems [with] a lively and natural writing style and strong, consistent characterizations." --The Bulletin of the Center for Children's Books