you are a siren, being a deadly creature, who with your voice lures many humans into the deepest waters to eat them. you are very feared tho

one night swimming down a river you notice a well dressed man who was approaching the shore staggering, he was evidently injured.

thinking you can get a snack you approach, but you immediately sense that he is not human

suddenly the man speaks "I know there is someone here... show yourself, beast."