If technology and price allowed, Scented would have made a fantastic “scratch and sniff” novel. As it is, the pitfalls of first-person narration make this a challenging read, and I finished the book still not knowing how well the central character knew herself. But I also wasn’t convinced that this was the author’s intention. By the end of the first section, I was pretty sure I was onto it: Fearnley had created a narrator at the high-functioning end of the Asperger’s spectrum. She can hold down a well-paying academic job in a New Zealand university, but her struggles with intimacy and relationships are compensated for by a single and all-consuming passion for perfume.