How does Stevenson create a sense of evil in Dr. Jekyll and Mr Hyde?

In addition
to theof Hyde (particularly the repeated mention of deformity), Stevenson uses setting to help
create a sense of evil. Check out the description of the back of what we learn is Jekyll's
residence just before Enfield relates his story to Utterson; or the description of the night of
the Carew murder. Surely Stevenson gives us a full moon so that the maid can identify Hyde, but
a full moon often suggests something sinister.

Further, Stevenson uses events
in the plot to suggest evil and foreboding--for example, the description of Hyde trampling the
girl; the description of the confrontation between Hyde and Carew; the discussion between Jekyll
and Utterson prior to the Carew murder; Dr. Lanyon's narrative; the incident at the window; and
certainly Jekyll's full statement. Since the depravity and evil of human nature is so central an
aspect of Stevenson's theme, he uses all of these and, of course, more to create a sense of evil
in the story.