These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Basically every time the lights go out, and, sometimes, when they turn on.
The monstrosity that lives in Henry's room sometimes. It's around 8 feet tall, covered in ragged hair and caked blood. When the room is viewed from the outside, bloody chains are laid across the door and are visibly straining against a force from the other side.
The boiler scene, dear sweet god the boiler scene.
We have discovered a note numbered 466. NAN I WON'T LET YOU LEAVE Keep in mind that was probably written in 1828.
The scene where we actually meet the Pilgrim first hand...And we see Anna's FACE! Dear, sweet Lord, her FACE!Dios mío.
Both the Padre and the Pilgrim are pretty much the epitome of HIGH OCTANE NIGHTMARE FUEL UNLEADED.