Natsume's Book of Friends Season 6 Episode 9 English Dubbed Episode Title: What Flows Episode Description: After a flood occurs on Four Mask Hill during Takashi's summer school session, a hidden fourth mask randomly appearing in the school worries Takashi. He learns that is a dutiful follower of a mountain goddess whom sees drifting in a boat as if looking for something precious. Naynko-Sensei manages to get Takashi to appease the mountain goddess' remaining mask-shaped follower and have the earth deity return to her mountain home.