The Shellies throw a party to thank the Mermaids and Fairies for waking them up. Harmony is back in the Sea World and everything seems to be going well, but... Oh, no! The Pearl of Darkness is missing. What will happen now? They cannot let Tentaclus become King of the Seas! They need to get the pearl from straight away. Tentaclus' first curse is turning them into statues, how will they revert the spell without losing the Pearl of Light too?