The Unknown Witches of Oz The Unknown Witches of Oz The Unknown Witches of Oz: Locasta and the Three Adepts is a 2000 novel written by Dave Hardenbrook, with illustrations by Kerry Rouleau. As its title indicates, the book is an entry in the long-running series of books about the Land of Oz, written by L. Frank Baum and his successors. The publication of "The Unknown Witches of Oz" was timed to coincide with the centennial of the original Oz book, "The Wonderful Wizard of Oz" (as was also true of Gina Wickwar's "The Hidden Prince of Oz" and Edward Einhorns's "Paradox in Oz"). Hardenbrook's
Copyright status of The Wizard of Oz and related works in the United States Oz novels. "The Wonderful Wizard of Oz" was published in 1900, and was the first to enter the public domain in "1956". This allowed Reilly & Lee, the publisher of all the other Oz books (as well as Baum's other books) to issue their own edition of "The Wizard of Oz", which had previously been published by George M. Hill Company and later by the Bobbs Merill Company after Hill went bankrupt.. "The Marvelous Land of Oz", which was published in 1904, followed suit and entered public domain in 1960. All of Baum's subsequent Oz books, published between 1907 and