On the way to Emerald City, the friends are tormented by The Wicked Witch of the West (Margaret Hamilton). She is the sister of the witch Dorothy killed. She wants the ruby slippers. Dorothy won't give the slippers to the witch. The friends arrive in Emerald City. The Wizard sends them off to kill the witch. The friends are captured by the witch. Dorothy throws a pail of water over the witch. The witch melts.