In a beautiful villa beside the sea, full of nooks and mystery, five sisters are living on their own since their parents died in a car accident—growing up together, sharing their grief, everyday experiences, and love. Charlie is the oldest; as the only adult she became the head of the family.
Each of the four books is narrated by a different younger sister. The first story is about the youngest sister Enid. A free spirit, she enjoys wandering alone and talking to animals and anything she meets. Her best friend Gulliver is, like her, offbeat and creative. Enid keeps hearing ghost-like screams and the two friends embark on a scary adventure. These sisters are not perfect. They may not always get along, but in times of need, they can always count on one another.