Mary Poppins Opens the Door Author:Dr. P. L. Travers Mary Poppins returns, falling from the sky like a shooting star! Soon Mary and the kids are off on a new round of marvelous adventures. A visit to Mr. Twigley?s music box-filled attic, an encounter with the Marble Boy, a ride on Miss Calico?s enchanted candy canes--all part of an average day out with the world?s most beloved nanny.