Oz

Oz is a world featured on ABC's Once Upon a Time. It first appears in the sixteenth episode of the third season.

History
Following Rumplestiltskin's orders, world traveler Jefferson leads to Oz in search of magic slippers capable of jumping through lands. Though unsuccessful, he does return with a crystal ball that Rumplestiltskin begrudgingly accepts. The Doctor
 * -|Before the Curse=

After a horrible cyclone hits Oz, a couple finds a baby and hesitantly decide to bring her home and adopt her. A few years later that same baby named The Wicked Witch of The West now, Is at home with her father and as she shaves his face with a knife, accidentally pricks his face. She then uses magic to make a towel appear and frightens her father. He tells her that she is adopted and that he is a disgrace to his family. He then tells her to put a smile on her face. Angered Zelena refuses to stay with her drunken father and heads off to the Wizard of Oz.

Zelena makes it to the Wizard and is revealed to have a sister and is given the Silver Slippers to transport to the Enchanted Forest and meet Rumpelstiltskin and to steal something valuable for him in return.

Zelena furious with anger and stronger than ever, Pushes the guards back and re enters the Wizards room. He is later revealed to be a humbug wizard with no magic but a simple Circus man. Zelena with rage turns him into a Flying Monkey and brings him along to destroy her little sister once and for all. It's Not Easy Being Green

Locations
For detailed location information, please see the list of Oz locations.

Trivia

 * In the Portal of Doors of the Hat, the Green Curtain Door leads to Oz. It has two handles shaped like an O, with a golden Z on them.
 * Oz is mentioned in Henry's storybook in "Pilot" and "Snow Falls".