""But-" she protested. "How can it be? You are in Once Upon a Time. And that is long ago."
"Oh, no!" said Veritain. "It's always. Do you remember your great-great-great-great-grandmother?"
"Of course not. I am much too young."
"We do," said Florimund, with a smile. "And what about your great-great-great-great-granddaughter? Will you ever see her, do you think?"
Jane shook her head a little wistfully. That charming far-away little girl-how much she would like to know her!
"We shall," said Veritain confidently.
"But how? You're the children in the story!"
Florimund laughed and shook his head.
"You are the children in the story! We've read about you so often, Jane, and looked at the picture and longed to know you. So today-when the book fell open-we simply walked in. We come once into everyone's story-the grand-parents and the grand-children are the same to us. But most people take no notice." He sighed. "Or if they do, they forget very quickly. Only a few remember."
Jane's hand tightened on his sleeve. She felt she would never forget him, not if she lived to be forty."
The movie "Mary Poppins" is possibly the only movie to ever be better than the books on which it was based, so the books tend to get overshadowed (I might put "Pinocchio" into this category as well, I found the book a bit frustrating...). But this is not for lack of quality in the books, so they are definitely worth reading, for children or adults.
The Mary Poppins books were written by P.L. Travers and illustrated by Mary Shepard.