This document discusses themes of secrecy and duality in Robert Louis Stevenson's novella "Strange Case of Dr. Jekyll and Mr. Hyde". It analyzes key symbols like Jekyll's locked door and how it contrasts with other doors on the street, implying his desire to keep his experiments and true nature hidden. The document also looks at how Mr. Hyde affects others, with quotes suggesting he instills fear and unease in people. Examples are provided of how London is portrayed as a threatening place, and two contradictions in the character of Mr. Utterson from the first three paragraphs are identified.