Speaking of human sacrifices and HPL.

The man used them very sparsely: Keziah kills children in The Dreams in the Witch-house (altough it's not exactly sure what they do, they seem useful to return in the real world) and in the Call the cultist offer them to Those with the Dark Wings (do they need to feed off on them? Actually, what are they, even?).

While this is all fine and dandy and defintely helps him stay away from the gothic/pulp novel overused tropes, I'm partial to the nips ideas of human suffering as magical fuel (Silent Hill style) and the haunted location as really a nowhere of mass murder/playground for foul shit (Corpse Party).

So... what are some ideas to make it a tiny bit more lovecraftian than "crazy hypergeometrical witch kidnaps and kill children in her pocket dimension"? Not necessarily less pulpy, but somehow more inspired.