275, [1] pp. 8vo. Red cloth, black titles, knight vignette on spine, color paper label on front board, illustrated endpapers, color frontispiece and plates (12 total) and black-and-white illustrations by John R. Neill. The tenth book in the continuation of Baum's immortal Oz series by Ruth Plumly Thompson, whose books are now considered part of the official canon - as such, it is considered the twenty-fourth book in the series overall.
