Form, structure and symbolism reveal how Stevenson presented his novel to readers, his intentions, and what he was trying to make the reader think and feel.
The structure of the novel is both complicated and interesting. Stevenson splits the novel into ten chapters each given a title:
Story of the Door
Search for Mr Hyde
Dr Jekyll was Quite at Ease
The Carew Murder Case
Incident of the Letter
Remarkable Incident of Dr Lanyon
Incident at the Window
The Last Night
Dr Lanyon's Narrative
Henry Jekyll's Full Statement of the Case
The titles show us how tension is built in the novel towards a climax in chapters 4-8.
The complex structure is, in part, because of the number of different narrators. Utterson narrates the bulk of the novel before we get Lanyon's account and then finally Jekyll's. This must be the case because if we heard from Jekyll before this then the mystery would be revealed.