Many years ago, when I first got on the Internet and was hanging out on AOL, a discussion came up about quest stories for children where the searcher was a girl. We came up with two: The Wizard of Oz and Alice in Wonderland/Through the Looking Glass.
Since that time, I’ve come up with another: A Wrinkle in Time.
One of my writer friends says the Narnia series also has a female protagonist. I never read the books. I tried to get my children to read them, but they didn’t care for them.. If she says there was a girl protagonist, I believe her.
Can you add to this list?