A case of eavesdropping

“A case of eavesdropping” is a supernatural horror short story by Algernon Blackwood that explores the collapse of rational perception under isolation, suggestion, and uncanny proximity to unseen events. The narrative follows Jim Shorthouse, a restless young journalist who rents a room in a quiet boarding house and gradually becomes entangled in disturbing nocturnal disturbances emanating from the adjoining room. What begins as accidental eavesdropping on a private argument escalates into an overwhelming psychical experience: shifting states of consciousness, auditory hallucinations, and a progressively destabilized sense of reality. The story culminates in a violent, ambiguous revelation involving murder, inherited trauma, and the possibility that the events may be as much psychological as supernatural. Like much of Blackwood’s work, the story blends occult suggestion with psychological horror, leaving uncertainty at its core: whether the terror is external, internal, or both.