In Chapter 6 Of Wuthering Heights Whose Description Of Thrushcross Grange Does Nelly Report?

In Chapter 6 of the novel, Hindley returns for his father's funeral and brings a wife, Frances, along with him. Taking control of the farmhouse, Hindley immediately makes changes, moving Joseph and Nelly to the back-kitchen and prohibiting Heathcliff from receiving an education. Hindley also makes Heathcliff work in the fields. Hindley does not pay much attention to either Heathcliff or Catherine, and so they live "as savages," skipping church and playing on the moors.
One day both Catherine and Heathcliff disappear. When they can not be found, Hindley orders the doors bolted. Nelly waits up for them, but finds out that Heathcliff returned home alone. He explains to Nelly that he and Catherine ended up near Thrushcross Grange and stole closer to peer into the windows and make fun of Edgar and Isabella, the Linton children. As Catherine and Heathcliff laugh at the Lintons, they are heard and run away. Skulker, the Linton's dog, chases after them, biting Catherine on the ankle.
In this chapter within Nelly's narration, the events that transpired at Thrushcross Grange are told from Heathcliff's point of view. He immediately dislikes the Lintons and what they represent, plus they now have what he cherishes most, namely Catherine. Therefore, the narrative once again becomes slightly suspect. Perhaps things occurred exactly as Heathcliff relates them or perhaps he paints a slightly skewed picture.
While talking to Nelly, Heathcliff describes Thrushcross Grange as a splendid place with refined carpets and a beautiful white ceiling. In that way, Nelly reports Heathcliff's account of the Linton's property.