The world of Kazuo Ishiguro’s new novel — let’s call it Ishville — is instantly recognisable. Our narrator, Klara, is arranging traumatic memories into comprehensible order. She is a robot, an Artificial Friend or AF, purchased as a companion for an ill teenager named Josie. Klara’s speaking voice, in a C3PO-ish way, is endearingly off-kilter: ‘I was instructed to ensure against hanky-panky.’