Poe also wrote a pretty disturbing short story about a doppelganger. <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;William_Wilson_(short_story)" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;William_Wilson_(short_story)</a>