Scientific disciple of magical art - depends how you look at it really
Folk magic is more of a magical tradition than a school of scholarly research being as old as the hills, some say as old as time itself. It is as deeply ingrained to the psyche of the country folk as the changing of the seasons and has been passed down from father to son and mother to daughter for countless generations.
During a storm the PCs come upon a little boy that plays in the rain. Upon further inspection they discover that he has one eye and a long tongue lolling in its mouth. Spit dripping. It is a demon from beyond that can access our realm during storms, it eats all heads that are not its own, living and dead.