It is the last book of the original Oz series , which was later continued by other authors .
Glinda of Oz is the fourteenth Land of Oz book written by children 's author L. Frank Baum , published on July 10 , 1920 .
It is the last book of the original Land of Oz series , which was later continued by other authors .
Glinda of Oz is the fourteenth Land of Oz book written by children 's author L. Frank Baum , published on July 10 , 1920 .