Question: when does will find out bella's a mermaid
Answer: 62 `` Revealed '' Jeffrey Walker Sam Carroll 6 November 2009 ( 2009 - 11 - 06 ) ( UK ) 310 When Rikki and Cleo realise that Will has made a connection between Bella , Mako , and the full moon , they warn Bella to stay away from him , but she ca n't .