Publisher's Synopsis
The Royal Book of Oz (1921) is the fifteenth in the series of Oz books, and the first to be written after L. Frank Baum's death. Although Baum was credited as the author, it was written entirely by Ruth Plumly Thompson. Beginning in the 1980s, some editions have correctly credited Thompson are known from four typewritten pages found at his publisher's, but their authenticity as Baum's work has been disputed. Even if genuine, they bear no resemblance to Thompson's book.
