The Witch Queens Trilogy (Epic Fantasy Box Set) by Tarl Telford. $9.99 from Smashwords.com
Long before Dorothy, there was Glinda... In the generations before Dorothy, the history of Oz was forever altered, when a young human Wizard and a rebellious sorceress discovered the world-changing power of dream-magic. This box set collects the first three books of the epic fantasy Hidden History of Oz saga into a magical compendium sure to inspire dreamers of all ages.