At Halo McNightly\'s school, the swimmers are disappearing from the boys\' swim team.
Halo will have to use her special Candy to turn into various underwater fauna, such as a hammerhead shark or an octopus, to defeat the hungry girl-fish!.
A deadly mermaid lives in a cave connected to the school swimming pool.
No one can figure it out, until Halo stars investigating.
At Halo McNightly\'s school, the swimmers are disappearing from the boys\' swim team