The scouts are invited to a ball, held by Princess Diamond. She displays the royal jewels, including the silver crystal. Everyone wants the silver crystal because they think it is the silver imperium crystal. The princess gets possesed so she can deliver the crystal to Nephrite. Serena is pushed off a balcony and is saved by Tuxedo Mask. In the end, the monster is defeated and the silver crystal is not the right crystal.
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