Question: Who wrote the 40th and final title in the regular series of Oz books, illustrated by Dick Martin in 1963?
Sentence (from "The Marvelous Land of Oz"): The Marvelous Land of Oz: Being an Account of the Further Adventures of the Scarecrow and the Tin Woodman, commonly shortened to The Land of Oz, published on July 5, 1904 , is the second of L. Frank Baum's books set in the Land of Oz, and the sequel to "The Wonderful Wizard of Oz" (1900).
Relevant evidence: No