Dorothy Gale finds herself trapped in the mysterious Land of Oz and her presence threatens to re-ignite a war between magic and machines. The secret to getting home lies in the lost City of Emerald Light. Revenge Of The Dark Witch Of Oz is a science fiction/fantasy adaptation of L. Frank Baum's The Wonderful Wizard Of Oz. The tale is told in an illustrated screenplay format, complete with paintings, detailed images, sketches and storyboards.