|Mercer Mayer, source|
Fairy tales were only recently committed to writing. Before then, their amorphous nature was much clearer. But even in the age of electronic texts and instant publication, the discourse about fairy tales which, in turn, is appropriated into the tales themselves, goes on.
Myth & Moor is a great example of that. What I've tried to say here is poorly expressed, but perhaps better understood by the recent discussion under this topic (art and magic). Here's where words leave off, and one can only show.
Also, see Mr. Pazdziora.