This is a type of evil faerie from Scotland, which lives in the salty sea. It looks like a seahorse a bit, except more horse than a seahorse, with a drooping head and no skin, so you can see its insides as it chases you! It will try to run you down and do unspeakable things to you if it catches you, and the only way to escape is to put a barrier of fresh water between you and it, because it cannot stand non-salt water. Just hope you never encounter one.