Girl gets lifted by a big bird to a far off fantasy land. She has golden blonde hair and brown eyes. All of the people in the new land have white hair and blue-green eyes, and the kids ride to school on six-legged unicorns.There is a wise old woman who grants each person one answer to an important question in their lifetime. This was a children’s book I borrowed from the library in 1972 or 1973.
Tatsinda, by Elizabeth Enright.