Well maybe Elizabeth just had the power to travel between lands. And when rump tried to find her, she escaped to the one place he couldn’t reach. Zelena could transport people from Oz to the EF. Maybe their are some people who can do that with any land. Like the white rabbit.
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"I could have the giant duck as my steed!" --Daniel Radcliffe
Keeper Of Tamara's Taser , Jafar's Staff, Kitsis’s Glasses , Ariel’s Tail, Dopey's Hat , Peter Pan’s Shadow, Outfit, & Pied Cloak,Red Queen's Castle, White Rabbit's Power To World Hop, Zelena's BroomStick, & ALL MAGIC