SUPERNATURAL ENCOUNTER
Scrooge experiences a supernatural encounter when he sees Marley's face in the knocker of his door, despite Marley being his deceased partner. The text describes the face as ghostly and horrifying, indicating an event of supernatural significance.
SCROOGE
Scrooge, having his key in the lock of the door, saw in the knocker, without its undergoing any intermediate process of change--not a knocker, but Marley's face. Marley's face. It was not in impenetrable shadow, as the other objects in the yard were, but had a dismal light about it, like a bad lobster in a dark cellar. ... The hair was curiously stirred, as if by breath or hot air; and, though the eyes were wide open, they were perfectly motionless. That, and its livid colour, made it horrible; but its horror seemed to be in spite of the face, and beyond its control, rather than a part of its own expression. As Scrooge looked fixedly at this phenomenon, it was a knocker again.