Petunia, Gernimo's girlfriend has planned a trip to Shell Island.There he takes diving lessons. On his first lesson, he sees a shadow - no more like a huge blue fish with razor sharp teeth. Soon he finds out that there is no fish like that-but a HUGE pearl. It was called The Eye Of The Ocean. After some mice stole it, Petunia comes up with a plan to get back. After they got the pearl back, they displayed in the mouseum.c