The Strange Case of Dr Jekyll and Mr Hyde (1886), with its historical and geographical correspondence to nineteenth-century London, is an apt text for Spatial Type One. But the London portrayed is often an allegorical one. Like the novel’s focal character, the city has a dual identity: respectability hides a darker side of the same entity. The metaphorical also arises from the sense of an artistic or imagined London, it integrates the fog-ridden city of Dickens with Stevenson’s experience of another city – the novel might ostensibly correspond to London, but it is one informed by Edinburgh. As the deep chronotopic map highlights, the novel’s form is also multiple, amalgamating the Gothic, the detective story and sensation fiction. Like sensation fiction, it brings the mysteries and fears of Gothic fiction closer to home.