Much like “The Tell-Tale Heart,” “The Black Cat” follows the narrator’s descent into madness after he proclaims his sanity in the tale’s opening paragraph. Even the narrator acknowledges the “wild” nature of the tale, attempting thereby to separate his mental condition from the events of the plot. The nature of the narrator’s madness differs from that of the narrator of “The Tell-Tale Heart.” “The Black Cat” does not concern itself only with the self-contained nature of the narrator’s mind. Rather, the narrator confesses an alcoholism that interferes with his grasp on reality and produces mood swings. Alcohol is, like the cat, an external agent that intrudes on the dynamics of the plot. The introduction of alcohol as a plot device is also significant because Edgar Allan Poe was an reputedly uncontrollable drunk throughout his lifetime. For many years, his biographers asserted that he died of alcohol poisoning in a gutter in Baltimore. More recent biographies insist that the exact cause of Poe’s death cannot be determined. Regardless, it is certain that Poe suffered from the deleterious effects of alcohol consumption throughout his life.