Ghoul mythology

The Aswang.

The Rokurokubi are Japanese mythical creatures that look like normal women by day. By night, however, their bodies sleep while their necks stretch to an incredible length and roam around freely, drinking other people's blood and even (rarely) eating humans.

Ghouls are a species of cannibalistic humanoids featured in several of H. P. Lovecraft's works, where they feed principally (but not exclusively) on the bodies of the dead. They are first mentioned in "The Hound", although ambiguously, as the word "ghoul" in that story might be intended as just a synonym for "graverobber". The story also mentions a corpse-eating cult based on the Plateau of Leng. Ghouls are first patently depicted in the short story "Pickman's Model", where the eponymous…