Later on it was found out that her daughter from her first marriage was alive and was living in the cottage. The little girl was black and Effie concealed this fact from Grant as she was scared that he would reject her as she was mother of a child of mixed race. “The Murders in the Rue Morgue” revolves around twin murders of a mother and her daughter in Rue Morgue, which is a fictional street in Paris. Dupin, who lives in Paris takes it upon himself to solve the mystery. There were numerous witnesses who claimed they heard the suspect but could not recognise the language. At the murder venue, Dupin finds a hair which does not belong to any human. Eventually, it was revealed that an Ourang-Outang has escaped from a sailor with his shaving razor, and the animal is responsible for the murders.
Though the theme of both the stories circles around unlocking of a mystery but they are very different from one another in terms of plot in both the stories. The theme in the “The Yellow Face” lies in the mystery surrounding a previously married but devoted wife’s sudden suspicious behaviors, whereas, we witness a much more complex theme in “The Murders in the Rue Morgue” where we are gripped with an aura of chilling mystery surrounding a couple of ruthless murders. The first story is a framed narrative from Dr. Watson’s point of view, like most other Holmes’ series. On the other hand, the second story is narrated in first person by an unnamed narrator.
Although its inspirations can be traced back to the “Das Fräulein von Scuderi” by E.T.A. Hoffmann in 1819 and the 1748 publication of the “Zadig” by Voltaire, The Murders in the Rue Morgue (1841) by Edgar Allan Poe is considered to be the first ever detective mystery that showcases the art of deduction in solving a crime based on detection and analysis of clues that by an investigator.