Brian Selznick

A family of porcelain dolls that has lived in the same house for one hundred years is taken aback when a new family of plastic dolls arrives and doesn't follow The Doll Code of Honor.

Annabelle and Tiffany, dolls who are best friends living in the Palmer house, have an adventure when they hide in Kate Palmer's backpack, are carried to school, mistakenly go to another house, and try to stop Princess Mimi, a doll who threatens all dollkind.