Mary Poppins opens the door /
by P.L. Travers ; illustrated by Mary Shepard and Agnes Sims.
- New York : Harcourt, Brace, c1943.
- 239 p. : ill. ; 20 cm.
Mary Poppins returns to the Banks family in a rocket and involves the Banks children in more magical adventures including those with Peppermint Horses, the Marble Boy, and the Cat that Looked at the King.