Portobello
Ruth Rendell
 The central character of the novel is Eugene Wren, a wealthy, middle-aged art dealer whose secretive personality jeopardizes both his sanity and his relationship with, and eventual engagement to, Ella Cotswold, an attractive general practitioner ten years his junior. Having in the past overcome various slight addictions to alcohol, nicotine, and food, Wren gets hooked on a special brand of sugar-free sweet, which he wants to conceal from his fiancée. When the couple decide that Ella should sell her flat and she moves in with him, he starts inventing excuses and lies so as to be alone just for the time it takes to suck a sweet and to get rid of the sweet smell on his breath afterwards. Extremely ashamed of his habit, he buys, hoards, and consumes the sweets secretly, and he establishes several caches in his antique-studded home. When Ella happens to find one of them, out of curiosity goes on to search the rest of the house, and finally confronts Wren with her find, he is so ashamed of himself that he sees no other way than to break off their engagement and move into a hotel.