Marlena

Marlena the Mermaid was a carnival worker at Fate's Carnival. She was married to Dante Camelo but had a affair with Fabiano Brawn. Madame Fate suspected her of being a possible murder suspect of her midnight demise but this was dispoven by the Master Detective. (Madame Fate)

Due to the curse that Alister Dalimer placed on the carnival, Marlena was trapped in her water display. The detective was able to free her. (Fate's Carnival)