Dorothy Must Die by Danielle Paige

I didn't ask for any of this. I didn't ask to be some kind of hero.
But when your whole life gets swept up by a tornado--taking you with it--you have no choice but to go along, you know?
Sure, I've read the books. I've seen the movies. I know the song about the rainbow and the happy little blue birds. But I never expected Oz to look like this. To be a place where Good Witches can't be trusted, Wicked Witches may just be the good guys, and winged monkeys can be executed for acts of rebellion. There's still the yellow brick road, though--but even that's crumbling.
What happened?
Dorothy. They say she found a way to come back to Oz. They say she seized power and the power went to her head. And now no one is safe.
My name is Amy Gumm--and I'm the other girl from Kansas.
I've been recruited by the Revolutionary Order of the Wicked.
I've been trained to fight.
And I have a mission:
Remove the Tin Woodman's heart.
Steal the Scarecrow's...