Nightmare Fuel

Dragondawn:
* The Three Dragons. They're all-powerful, they have no mercy and they're out to wipe out the entire world.
The Sidestory 2:
* The vomit. The workers literally vomitted to death for it to appear.
The Time of Bloody Fear:
* The culprit, who brutally murdered someone simply because he hit her.
* The culprit's mother being the one who planned this murder. There are hints the heroes and side-characters know each other for a while. This is similar to a real-life serial killer being just your neighbor, but planning brutal murders and going away with their actions for a while.
* The main villain, similarly, wiping out a town JUST TO BUILD HIS CASTLE.