Ep. 5: Carol's Ransom

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As Marine is set to star in a movie alongside child actress Carol Dodgson, Milky Holmes are hired as bodyguards when Carol receives a threatening letter. However, Carol seems less than willing to work with the others, especially Marine. After analysing the clues, Milky Holmes pretend to take Carol hostage in order to hold a surprise birthday party for her, deducing that she was the one who wrote the letter. Carol is then revealed to be possessed by another Element, Rhythmic, who challenges Milky Holmes and Marine to a giant block puzzle. After Milky Holmes manage to win using some sly hypnotism on Cordelia, Rhythmic explains how she resonated with Carol's fears of becoming an adult, while Carol and Marine become friends. (Source: Wikipedia)