James Frazer, The Golden Bough — Chapter 67:… (1922)
“ When the princess in the fairy tale asks the giant where he keeps his soul, he often gives false or evasive answers, and it is only after much coaxing and wheedling that the secret is at last wrung from him. In his jealous reticence the giant resembles the timid and furtive savage; but whereas the exigencies of the story demand that the giant should at last reveal his secret, no such obligation is laid on the savage; and no inducement that can be offered is likely to tempt him to imperil his soul by revealing its hiding-place to a stranger. ”
