The narrator's observations in the house of Mrs. Dorling:

Upon entering the house of Mrs. Dorling, the narrator notices several interesting and peculiar things. These observations give insights into the character of Mrs. Dorling and the environment in which she lives.

The House:
- The house is described as old and dilapidated, with a neglected appearance.
- The front garden is overgrown with weeds and the paint on the exterior is peeling off.
- The overall atmosphere is gloomy and unwelcoming, reflecting the mysterious nature of the house.

The Interior:
- The entrance hall is dark and poorly lit, giving a sense of foreboding to the narrator.
- The walls are adorned with faded wallpaper, which has started to peel at some places.
- The furniture is old and worn out, with dusty surfaces indicating a lack of maintenance.
- The rooms are filled with antique furniture, giving the house an antique charm.
- There are numerous paintings hanging on the walls, depicting various landscapes and portraits.
- The rooms are cluttered with various objects, such as books, trinkets, and antique collectibles.

Mrs. Dorling:
- Mrs. Dorling herself is described as an elderly woman with a hunched back and a somber expression.
- She wears old-fashioned clothing, further emphasizing her connection to the past.
- Her movements are slow and deliberate, as if weighed down by the burden of time.
- She speaks in a low and raspy voice, adding to the eerie atmosphere of the house.
- Despite her appearance, Mrs. Dorling exudes an air of mystery and wisdom.

Overall Atmosphere:
- The house emits a musty odor, hinting at years of neglect and lack of fresh air.
- Shadows cast by the dim lighting create an atmosphere of mystery and suspense.
- The silence in the house is almost palpable, broken only by the occasional creaking of the old wooden floors.
- The combination of the eerie surroundings, Mrs. Dorling's presence, and the strange objects in the house creates an air of intrigue and curiosity.

In conclusion, the observations made by the narrator in the house of Mrs. Dorling provide a vivid and detailed description of the dilapidated house, its interior, Mrs. Dorling herself, and the overall atmosphere that surrounds them. These descriptions contribute to the overall mood and setting of the story, drawing the readers into the mysterious world of Mrs. Dorling.