Cathy is seventeen living in LA. Even though she is just seventeen she's a Keeper. She watches over the zoo animals to make sure that they are always happy. And that is not always an easy job, especially for her. You see when ever she touches water she grows a tail. Yep, she's a mermaid. But she loves her job too much to stop. I mean, after all she is part fish.
Cathy was smart do get the job at night when most of the workers have already gone home and she could do the feeding and watering in peace. And not have to worry about anyone seeing her tail if she got any water on her. Also she can talk to the animals without being looked at funny. Because she's half fish she has a gift of talking to animals, so she's the best at her job. She knows when they're upset or if they want something. She enjoys helping the animals, so really this is the perfect job for her.