Part 1: SHARK!?

There a Mermaid named Lexi. She lived in the Marina Kingdom. Her parents died when she was little. But she got her best friends. She was a happy mermaid. There was something behind her. It was a Big Shark. It chased her far away. The shark swam away from Lexi as soon as Lexi pulls out the heart of marina. Then Lexi was lost. And other things happen in her life. and that's how the adventure begins