River Mumma!
The mystical being hides away and secretly tends to herself, they said "she's the most beautiful creature and yet she'll give you hell" but still many hunts her down. At nights she sings a depressing yet mesmerizing tune that draws in her next victim and eventually they disappear never to be heard of or from again.
As a child I was scared as hell of going to the river, too afraid that said 'river Mumma' half woman half fish would capture me. But then I've never really seen any evidence of such mysterious being lying around so I laughed it off. Of course someone would eventually go missing and of course my soul would wonder off into a dark dream pursuing a path that I'd be too scared to travel while being conscious. I dreamt of a beautiful woman sitting on a rock singing sad melody combing her hair and it captured my heart pulling me in ; I was in a trance. Eventually my heart rate spiked and I woke up sweating profusely. Ah! It was just a dream.
Many said that if one found her comb they'd have three wishes or wealth but eventually you'd die because she would either sink your town or kill off everyone if her possession is not returned. To say the tale of dear river Mumma didn't give me hell as a child is a total and utter lie but then now that I've grown up a little Ive stop believing and said story only stays as a childhood tale that maybe I will share with my child or grandchildren someday.