Luna flipped to the next page, not forgetting to write her report on selkies. Not that there was much to write. But atheist she was showing her aunt that she was taking her punishment seriously.
Finfolk
The illustration underneath the title was of a humanoid fish sitting on a large rock alongside a seabed. It reminded Luna of that episode of Family Man that Isaac forced her to watch a few years ago. It was that one episode where Lewis and everyone thought Petra had died but she had actually been saved by a merman. The merman's features were reversed from what was universally known as a typical merman-it had the body of a human and the head of a fish. That was what the illustration for a Finnfolk reminded her of.
[Finfolk are the sorcerous shapeshifters of the sea. They are commonly known to live in the depths of the Orkney Islands. It is unknown if they have spread further out.