1 Work in Sean Marshall
The Thirteenth Year & H2O: Just Add Water. When "tourists" show up on Mako Island, Emma and Cleo glimpse something unbelievable – a mermaid with a merman – or, rather, triton - in the moon pool at the base of the islands dormant volcano.
Bringing in Louise Chatham is their only choice – as the girls learn more about Julia (who unlike Louise and Gracie, didn't give up her powers) they find she isn't as dead as they thought, despite that Rikki found her locket in a shop and the owner having claimed it to be from a "deceased estate". Life is about to get even more interesting in Gold Coast, Australia.