Dr Jekyll and HydeWatch this thread
“ fog rolled onto the city” Stevenson uses pathetic fallacy to create specific tones regarding setting... in this case the fog passing could symbolise the unraveling of “the strange case of Dr Jekyll and mr Hyde” (regarding the title of the novel,going slightly of topic but it is very important that you emphasise that it is MR Hyde and DR Jekyll, that Hyde is of lower class so his crimes are more exceptable as he is younger and of lower class than Jekyll. This could also reflect Stevenson’s personal internal conflict as he was of higher class and any misbehaviour was highly frowned upon)
Most settings are used to create a sense of darkness which contributes to the continuous feeling of secrecy and mystery throughout the novel, this makes the reader feel anxious as they can almost foreshadow that a frightening event will take place. Stevenson always plays with the idea Victorian fears regarding all aspects of the novel not just setting.
Do you mean London. You could talk about how the home of Hyde is in Soho. How Hyde entered through a shabby entrance into the home of Jekyll suggests parallels within Jekyll's home and so his character.