Witching Hill by E. W. Hornung revolves around a mystery set in the eerie Witching Hill housing estate, built on the grounds of a former country estate known for its decadence and depravity. The stories are linked by the suggestion that the sinister events occurring at the estate are tied to the malevolent influence of Lord Mulcaster, a wicked and long-dead ancestor. The narrative follows the relationship between Uvo Delavoye and Mr. Gillon, a young and skeptical clerk. Their exploration reveals a hidden tunnel beneath the estate, sparking a partnership that intertwines their lives with the dark history of the area. As they investigate, the two men uncover a series of strange occurrences that point to the supernatural forces at work. The opening sets the stage for a tale filled with suspense, historical intrigue, and mystery, as Gillon and Delavoye venture deeper into the estate's secrets, navigating the boundary between the rational and the supernatural.