With it being a book series full of Paranoia Fuel, about psychics that can easily hijack your body and make you do anything without breaking a sweat, there's certain to be plenty of Nightmare Fuel....
- Expanding upon the point made above: anyone you know could be a psychic. Your neighbor. Your spouse. Your worst enemy. And what's worse? Anyone you know can be possessed. That is, unless they've gone to Maryland recently...
- Whatever's in Maryland. An Eldritch Abomination that taints the minds of anyone who gets too close to it; and it can use them as puppets too.
- Arguably even worse is the actual story of what the "puppets" are; the Eldritch Abomination doesn't Mind Rape you. It's just the remaining, shattered parts of the mind of the psychic the Elder inhabits the body of, trying desperately to warn anyone who can stop the Elder. W.D Gaster, eat your heart out.
- Quincrux. An Implacable Man who is hellbent on hunting Jack Graves to the ends of the Earth. He can turn anyone against you. He can make goddamn sleeper agents. And he will never stop until he has achieved his goal.
- Negata. In a world full of psychics, he's immune. How? By being The Soulless.
