My entry for day 26 of the #Spooktober contest!
I enjoy studying mythology in my freetime, so when I saw the riddle I was quite sure I knew what it was.
However, I couldn't remember what it was called. XP

I proceeded to google:
Aquatic shapeshifting horse that ?eats? people

It worked, at least. :thumbsup:
Still embarrassed that I couldn't remember that though.
I suppose that Greek mythology is what I research more often.

Sorta 3D... :)