"Deep Sea Secret": There’s nothing like a Charm School field trip — especially to an underwater city filled with interesting mer-people! Falling away from the group, Sabrina, Shinji and Llandra find a cave filled with ancient cave paintings. Narayan, a mer-man who wants to be an underwater archeologist one day, explains that one of the paintings prophecies a time when the mana tree will die and the waters will be teeming with horrible sea monsters!