Is Haku's illness really from a curse laid on him by Yubaba's sister Zeniba? Sen is about to journey to Zeniba's home in Swamp Bottom to find out. But before she can take the mystery train that leads there, she has to confront the frightening No Face, who's been tearing up the bath house, and demanding to see her. Sen is on the verge of answering many questions. Can she pass Yubaba's final test in order to win back her parents, and even her real name?