Review by Stephen J. Teller in "The Baum Bugle" Winter 1993
Someone is spreading the rumor that Ozma of Oz has been practicing the illegal art of Witchcraft. In order to defend herself against the slander, Ozma summons the greatest lawyer in the world, Perry Mason, and his associates, Della Street and Paul Drake. This first full-length Perry Mason/Oz pastiche has a full complement of red herrings and a surprise ending.