In the cave, the young narrator and his father sing a lullaby, which they believe to be the last poem in the Secret Book. The monk tells the young men that the cave is connected with the secret passage leading to the treasure, but they are afraid that they are trapped in the cave. They decide to call the master, but the monk has already abandoned them. The young narrator asks his father to tell him what they should do after they get out of the cave so that they can figure out the meaning of the song.