Vischer knew he shouldn't, there was a reason why the seas were separate from freshwater. Yet, the siren couldn't help but be curious, swimming closer to where the river ended and the sea started.

He should have been back in his home territory, perhaps hunting down some fish or practicing his singing. Instead Vischer swam further, his scales itching at the feeling.

He saw a flash of fins, looking directly at... whatever you were. A merman? But he had never seen one in river water before.