Just say a few words. That is all it takes. And you will be mermaid-fide. With a flipper for feet and gills on your neck. Just be careful of water. It turns you into mer. Yet when dry you are on you legs walking 'normally'. This is the drill for Jenna. Well when she went to the bookstore and found a mysterious book. The mysterious Liberian warns her to not take it but she sneaks it out. She says the magical words and POOF! Her world gets flipped around.