[DF] Big Bad Wolf

[Bruno]

The wolf dressed itself up in Grandmas clothes - that I think was the condition rather than eating Grandma. Eating Grandma certainly was a logical thing for a monster to do once he got Grandma out of her clothes, but with the various kinder-gentler versions with Grandma locked in the cellar or in the wardrobe, clearly kids buy "wears her clothes" as the explanation.

I'd make it a glamour myself. I don't think it's real shapeshifting, and Red Riding Hood does see through it - "what big eyes, what big ears, what big teeth" - clearly she sees a wolf. She's just completely freeking deluded in the classic Grimm version.

Note that earlier (and modern) versions have Red Riding hood climb into bed with the wolf, and some of the early pre-grimm versions may be implying they get up to no good while they're in there together. Certainly some of the modern versions do but those are not-for-children retellings. I'd call that either Mind Control, or out-right Riding Hood is seduced and corrupted.