Cleo Sertori is a shy girl. She is best friends with Emma Gilbert and Rikki Chadwick. She is also the girlfriend of Lewis McCartney. She, like her friends, is a mermaid. She has the power to morph water, and create gusts of wind. She is the daughter of
Don Sertori, and Bev Sertori, and the older sister of Kim Sertori
