When Lisa continued, "It's almost as though you're in a haunted mansion...," the other woman, despite her best efforts, couldn't help but give a gloomy smile.
Lisa was expressing the vibe that pervaded throughout the home.
Because John was staring at her with his brows furrowed while he did so, it gave the impression that he did not comprehend what she was saying.
This created the appearance that John did not comprehend what she was saying. John's expression created the appearance that he did not comprehend what she was saying.
This was due to the fact that John had been staring at her for a considerable amount of time.
"It is a lot bigger than the number of people who really live there, which is a horrible thing considering how low the population density is there. To put it another way, I do not want to be by myself..."