She hasn't cried once. SHe doesn't understand that Margaret is dead. At that age, they can't fully understand the concept of death. It's a good thing really.
Jane fully understood the concept of death and she felt truly injured that Aunt Bess considered her unmoved. Jane thought it should be perfectly clear to everyone that rearranging the furniture in her dollhouse was her expression of grief. She had been moving the Mother Doll (it was a nuclear family of dolls that consisted of a mother, a father, a boy, and a girl) and all the Mother Doll's possessions into the dollhouse's attic. Jane wondered why tears were considered a superior form of grief to the rearrangement of one's dollhouse.
Feeling terribly misunderstood, Jane began to cry.
Oh listen, said Aunt Bess, she begins to understand.

Auteur: Gabrielle Zevin