The Wizard of Oz was an entertainment franchise before franchises were a concept. The original 14-book series by Baum is a rich tapestry of dark fantasy with bizarre characters and settings.

In short, people are finding Oz everywhere but in the original books by L. Frank Baum — who invented the place in "The Wonderful Wizard of Oz" (1900) and its 13 sequels (after his death in 1919 ...