Doyle further develops the setting of the moor by having Stapleton describe it and having Beryl warn Watson away from the moor, which helps build suspense, Stapleton’s description builds the setting, as he talks about how people can sink into the moor
The first impressions that Watson has aren't good ones. Watson believes they are suspicious people, especially after Beryl came to him and told him to leave. Also, if Jack Stapleton warned Watson about how dangerous the moor can be, why would he go off blindly running into the moor chasing a butterfly?
Beryl warns Watson because she thinks Watson is Sir Henry and she believes in the hound of the Baskervilles. I don’t think her explanation is satisfactory, certainly after she tells him not to mention it to her brother. She may think that it is not safe in the town but telling the person to go far away seems overblown. Lots of the towns people debate the hound so her explanation is not a certain fact to be ushered away by.
In this chapter Watson questions himself a lot, forcing the reader to also think about the questions he is asking himself and try to figure out their answers. Watson's point of view in this chapter forces the reader to think like him. He is a very doubtful nararator in this chapter which confused the reader even more and it isnt as easy to figure out the mystery.
At the beginning of the chapter 7 everyone has confused mood about the crying. They all are questioning each other so they all have tones that seem to be ambivalent. This means they all seem to be questioning each other and the Barrymores seem to be heavily questioned, when they find Mrs. Barrymore was crying they then leave to the Stapleton’s. The mood soon becomes dark as they are very close to the moor. Their tone seem very calm as Watson and Mr. Stapleton have a easy conversation. Then when Mrs. Stapleton yells at him to leave things become more tense and he becomes cautious. They all have hostile tone other than Mr. Stapleton after Mrs. Stapleton’s outrage. When Watson is leaving he has a happy mood and tone because he has just found new information.