Background:
In H. H. Munro's (Saki) story ‘The Open Window’, Vera, the niece of Mrs. Sappleton, fabricates a story while her aunt is away, detailing her husband and brothers, including accounts of their attire and habits. She shares that on this very day three years prior, they went hunting and tragically disappeared into a deceptive bog. Vera also mentions that her aunt keeps the window open in the forlorn hope that they will return through it, along with their brown spaniel. Mrs. Sappleton remains oblivious to Vera's fabricated tale.
Explanation:
The dramatic irony emerges from the fact that the reader is aware of both Vera's and Mrs. Sappleton’s viewpoints, while each is unaware of what the other knows. This situation adds humor to their dialogue.
Moreover, the seemingly illogical manner in which Mr. Nuttel perceives Mrs. Sappleton’s upbeat conversation regarding her 'deceased' relatives as if they were alive adds to the comic nature of their interaction.
Mr. Nuttel’s nervous disposition plays a crucial role in the humor of their exchange; his anxiety prevents him from clarifying Mrs. Sappleton’s story or shifting the uncomfortable topic. Throughout the conversation, Mrs. Sappleton largely ignores Mr. Nuttel, failing to recognize or inquire about his nervousness, assuming he is only capable of discussing his illness.
Ultimately, the stark contrast between their perspectives reveals entirely different experiences, causing Mr. Nuttel’s initial compassion to shift to dread as he hurriedly exits the house in a state of panic.