The Brothers Grimm and werewolves
Look at what I found.
http://www.pitt.edu/~dash/werewolf.html#grimm214
Of course the 'Faery tales' of Little Red Riding Hood and The Golden Mermaid were werewolf stories origially, The Golden mermaid containing a wolf who could turn into a wizard at will.
Man is least himself when he talks in his own person. Give him a mask and he'll tell you the truth.