The setting of London Stevenson uses the setting to create a realistic in which Hyde could live.
Round the corner from the by-street, there was a square of ancient, handsome houses, now for the most part decayed from their high estate and let in flats and chambers to all sorts and conditions of men; map-engravers, architects, shady lawyers and the agents of obscure enterprises. One house, however, second from the corner, was still occupied entire; and at the door of this, which wore a great air of wealth and comfort, though it was now plunged in darkness except for the fanlight, Mr. Utterson stopped and knocked.
On the giant hand it shows news about a ship that was sunk because of information sharing. The hand also appears to begin to squash or shame a person for sharing information.
