I can think of few novels as bleak or dispiriting as Yiyun Li’s 2009 debut, The Vagrants. Set in a Chinese industrial town in 1979, it opens with one woman’s death and closes with another. The pages in between are jammed with misery meted out by scalpel: treacherous friends, underfed children, craven officials, all have their turn upon the stage, while school choirs sing unfalteringly in praise of the communist party.