You just rephrase it in your own words, but don't make the sentence too weak. Just write it in a way you would write it.
Answer:
In the beginning of Stevenson's novel, the reader knows very little about what's really going on who is Mr. Hyde, what is his relationship to Dr. Jekyll, why is Mr. Hyde so repellent to everyone around him. This lack of information makes the novel mysterious and creates suspense. The setting also helps, since part of the action takes place in relatively sordid parts of London.
Explanation: Hope this works!
B.........................
