Coralia decides to keep the Pearl of Light in the volcano to protect it and leaves Zarpas in charge while she sleeps, but... Oh, no! The next day neither the pearl or Zarpas are there, what could have happened? They all go to rescue him, and after, follow the clues on the road towards the Pearl of Light. Eventually, they find the pearl close to a cave, but some kind of marine monster shatters it into pieces. What will happen now with the Shellies and the Sea World?