The Hidden History of Oz is a young adult book series by Tarl Telford.
The book series is a prequel to the Land of Oz book, "The Wonderful Wizard of Oz" and takes place in a time before the Wizard arrived in Oz. After his arrival, how he affects the Land of Oz. The series is seen through the view point of a teenaged Glinda.
- Book One: The Witch Queens (July 11, 2012)
- Book Two: Crown of the Dreamer (September 10, 2013)
- Book Three: Emerald Spectacles (forthcoming)
- The Glinda Letters, volume 1 (forthcoming)
- The Glinda Letters, volume 2 (forthcoming)
- The Official Site for The Hidden History of Oz