This chapter's epigraph is from a famous poem by the English poet William Butler Yeats. It is a poem in which a young man named Tommo, who is the son of a famous English nobleman, asks his father-in-law, the Duke of Northumberland, to help him escape from his father's tyranny. The young man tells his father that he has come to seek refuge in Northumberland's castle, where he will be reunited with his father, who has been imprisoned in the castle for the past three hundred years. The Duke tells Tommo that he is welcome to stay, but he must leave the castle immediately. He tells him that Northumberland has sent his son to the castle to collect holy spirit stones, but the fog has made it impossible for him to do so, and he has been trapped inside the castle. He asks his son why he has become so strong, and the young man explains that he and his family were sent to the mountain to collect the holy stones. They were trapped inside because of the thick fog, and they have been unable to escape. They have been forced to flee the castle because the city lord of Yesen, the city