Swifty the Mermaid / Princess’ Fog Horn

S1 E110: Swifty manages to maroon himself on Big Blinky’s island, where his mournful cries are mistaken by Big Blinky as the song of a mermaid. Elias gets to the bottom of the mystery. / A thick mist is about to engulf the whole of the archipelago. As all ships take heed of Big Blinky’s warning not to leave the harbor, Princess and Cruiser rush off into the mist to play.