The excerpt :
Eventually, I visited Guyana to find out the fate of our house. As our car passed old sugar estates, and I saw the palm trees bending against the wide sky, the lush cane growing in thick, shiny rows, the villages, which were really parcels of land surrounding the important estates, I realized that sugar had been the entire reason for this country's existence. Every now and then an old boiling house—where the cane is processed into crystals, molasses, and rum—would show itself on the flat landscape, cropping up like a hulking ghost
Answer:
They show that the author wants to inform readers by describing the old sugar estates.
Step-by-step explanation:
From the excerpt Given, we could infer and conclude that the authors purpose as revealed by the details of the excerpt is to inform readers about the description of the old sugar estate. Even though the excerpt began with the author saying he wants to discover the fate their house, the main excerpt only covers details and description of the old sugar estate by giving an insight on how much sugar estate has grown and it being a main feature of the area.