How does Stevenson use the setting to create mystery and fear?
Write about
-How Stevenson describes the setting in this extract.
-How Stevenson uses settings to create mystery and fear in the novel as a whole.

This is the extract.
It was by this time about nine in the morning, and the first fog of the season. A great chocolate-coloured pall lowered over heaven, but the wind was continually charging and routing these embattled vapours; so that as the cab crawled from street to street, Mr. Utterson beheld a marvellous number of degrees and hues of twilight; for here it would be dark like the back-end of evening; and there would be a glow of a rich, lurid brown, like the light of some strange conflagration; and here, for a moment, the fog would be quite broken up, and a haggard shaft of daylight would glance in between the swirling wreaths. The dismal quarter of Soho seen under these changing glimpses, with its muddy ways, and slatternly passengers, and its lamps, which had never been extinguished or had been kindled afresh to combat this mournful re-invasion of darkness, seemed, in the lawyer's eyes, like a district of some city in a nightmare. The thoughts of his mind, besides, were of the gloomiest dye; and when he glanced at the companion of his drive, he was conscious of some touch of that terror of the law and the law's officers, which may at times assail the most honest.
As the cab drew up before the address indicated, the fog lifted a little and showed him a dingy street, a gin palace, a low French eating-house, a shop for the retail of penny numbers and twopenny salads, many ragged children huddled in the doorways, and many women of different nationalities passing out, key in hand, to have a morning glass; and the next moment the fog settled down again upon that part, as brown as umber, and cut him off from his blackguardly surroundings. This was the home of Henry Jekyll's favourite; of a man who was heir to a quarter of a million sterling.