There is, in addition, a sense of setting in
The Caves of Steel
(and in
The Naked Sun
) that does not exist in
The Foundation Trilogy
and the robot stories, and for good reason.
The Caves of Steel
is not only a title but a place, a place that is important to the murder investigation, the psychology of the City's citizens, and the theme of the Spacers trying to induce them to leave its protection. Everywhere Baley goes he is conscious of his surroundings: Enderby's office, the expressway, the Personals, his apartment (contrasted later on with a "grim, lowerclass apartment"), Spacetown, the motorways, a kitchen, a power plant, and Yeast-town. The presence of an outsider, Daneel, brings everything freshly to Baley's awareness. Setting is as necessary to
The Caves of Steel
as it is unnecessary in
The Foundation Trilogy.