It sounds in bad taste, but Scarlett Thomas has written a riotously enjoyable novel about a boarding school full of girls with eating disorders. It’s not that Thomas doesn’t take eating disorders seriously; she takes them so seriously that one of the girls dies. But there are few more vivaciously original novelists around today, and surely none of them is having as much fun while making serious points. Elsewhere, Thomas has written compellingly about her own orthorexia (or obsessive desire to control her diet); but this doesn’t mean that she is above lampooning the hysterical pronouncements of the diet-obsessed — not least that fruit, unless you pick it in the wild yourself, contains so much sugar that you may as well eat Haribo, which is nicer, after all.