Good Charlotte. Carol Beach York

Tatty is always in trouble! When a mysterious girl with blue hair shows up one rainy day, Tatty is the only one who believes she’s a princess. Who is she really? And why does she want Tatty to be her friend?
About the author
Carol Beach York was the popular author of books for children ages 7 to 12. Good Charlotte is one of a series for younger children that takes place in The Good Day, an orphanage where 28 little girls live and play and have some whimsical (even magical) adventures