Deletion of Hook horror

Comment: to List of Advanced Dungeons & Dragons 1st edition monsters. Of the sources given in the article, there is precisely ''two'', the last two, that are not |primary sources; of those, one is IMDB saying 'this appeared in this episode' (and, being IMDB, is of |questionable reliability) and the other is 'this is a coloring book that had this monster in it'. There is precisely zero out-of-universe notability here; merging and redirecting to the list is appropriate because as ''part of the group'' there is a smidge of notability and redirects are cheap, but ''independently'' there is nothing for an article here
Stance: merge
Cited policy: Wikipedia:No original research (WP:PRIMARY||WP:RS)