Return to Mertropia (S01E08)

S01E01 The Pearls of Neptune S01E02 Pirates' Cove S01E03 Dark Secrets Beneath the School S01E04 The Guardian of the Pearls S01E05 The Haunted Ride S01E06 Danger at Marine Rescue Center S01E07 A Volcanic Adventure S01E08 Return to Mertropia S01E09 A Test for Merlinda S01E10 The Power of the Pearls