BTW, my take on Return to Oz
Everything right with it came from Baum.
Everything wrong with it, whether we're talking gratuitous horror shock scenes that aren't in any
of Baum's books, or conflation of The Land of Oz
with Ozma of Oz,
or Langwidere with Mombi, or utterly unnecessary (and in the case of ruby slippers replacing the Nome King's magic belt, expensive) nods to the 1939 MGM Oz, came from screwing around with Baum.