The two best friends
story and
A little girl who has just moved to a new neighborhood finds a dog and strikes up a friendship with the girl next door, in spite of a case of chicken pox.

by Nancy Patz (1991)
When his best friend Annabella Pelican moves far away, Thomas Hippopotamus is very upset and angry, until he recaptures the warm memories of all the things they shared.
story and
A little girl who has just moved to a new neighborhood finds a dog and strikes up a friendship with the girl next door, in spite of a case of chicken pox.
You Byun
"A shy little girl yearns to find a real-life friend as wonderful as the one she plays with in her dreams"--Provided by publisher.