In this third book in the New York Times bestselling Dorothy Must Die series, new girl from Kansas Amy Gumm is caught between her home--and Oz.

My name is Amy Gumm. Tornadoes must have a thing about girls from Kansas, because--just like Dorothy--I got swept away on one too. I landed in Oz, where Good is Wicked, Wicked is Good, and the Wicked Witches clued me in to my true calling: Assassin.

The way to stop Dorothy from destroying Oz--and Kansas--is to kill her. And I'm the only one who can do it.

But I failed. Others died for my mistakes. Because of me, the portal between the worlds has been opened. And if I don't find a way to close it?

Dorothy will make sure I never get to go home again.

Now it's up to me to: join the Witches, fight for Oz, save Kansas, and stop Dorothy once and for all.