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On the way to the island of Moostap Island, Ash and friends have to face a sponge, which they had previously encountered. As in their previous encounter, sponges lose pearls again on their heads, and this time the pearl grows in water and is lost. Then the ashes and friends stop at an island, where they meet a scientist called Isaiah. Isaiah tells them that one of his clappels can help a spoil, because the clampers make only one pearl, sponges are on their heads.