Lyman Frank Baum was a US author, poet, playwright, actor, and independent filmmaker best known today as the creator - along with illustrator WW Denslow - of one of the most popular books in US children's literature, The Wonderful Wizard of Oz. - [Wikipedia]
A young citizen of Oz who learns an important magic word falls prey to the wickedness of the Nomes' ex-king who wants to destroy Dorothy, the Wizard, and Princess Ozma.