It is tempting to see Anuk Arudpragasam’s new novel A Passage North, set in the aftermath of Sri Lanka’s bloody civil war, as having political intent. It undoubtedly does: it is set around the dutiful visit of Krishan, a Tamil living in Colombo, to Sri Lanka’s war-scarred Northern Province for the funeral of Rani, his grandmother’s erstwhile care-taker, herself damaged by the war that took her two sons.