There is an actual (legendary) Hand of Glory - en.wikipedia.org/wiki/Hand_of_Glory - which is literally grim and gory. Knowing this doesn't help me at all. Although it does appear in Harry Potter - I haven't read Harry Potter, but maybe he's using that as an example of "declawed" stories, as compared to Bros Grimm et al?
There is an actual (legendary) Hand of Glory - en.wikipedia.org/wiki/Hand_of_Glory - which is literally grim and gory. Knowing this doesn't help me at all. Although it does appear in Harry Potter - I haven't read Harry Potter, but maybe he's using that as an example of "declawed" stories, as compared to Bros Grimm et al?