While Argento's writing is of variable quality, he has a knack for the short, multi-layered line of dialogue:
The Card Player: "I know everything about you"
Opera: "I don't think it's wise to use movies as a guide for reality? Do you, Inspector?"
/ "That depends upon what you mean by reality"
One I'd never thought about until now was the headmistress's insinuation in Phenomena, that Jennifer Corvino, after the flies incident, is some sort of devil-spawn via "Beezelbub, the Lord of the Flies"
Doesn't Lord of the Flies also relates quite nicely, via William Golding's novella, to the petty cruelties and bullying of the other girls towards Jennifer?