Final answer:
The sentence creates suspense by suggesting the possibility of supernatural occurrences, which scares the character Framton and engages the reader's fear of the unknown and the paranormal.
Step-by-step explanation:
The quoted sentence from paragraph 14 of Passage 1 uses the element of suspense by suggesting the possibility of supernatural occurrences. Imagining that figures 'will all walk in through that window' on a 'still, quiet evening' evokes a sense of eerie anticipation and plays on the common fear of the unknown and the paranormal. This sentence effectively creates suspense by scaring the character Framton with the idea that ghosts may appear, which in turn can provoke anxiety in the reader as they empathize with the character and imagine themselves in the scene. This vicarious experience relies on the reader's engagement with the narrative and their subsequent emotional response to the hinted possibilities of a ghostly encounter.