'On the twenty seventh of January 2001, while I was skiing fast down a mountain in France, my sister, Catherine, was dying slowly in England; in a hospital I didn't know she had been admitted to, from a cancer I didn't know she had, under an identity I had no idea existed.' Relative Stranger is the heart-rending story of Mary Loudon's search for her dead sister, whom she had not seen for the last twelve years of her life. It examines our assumptions about familial responsibility, challenging everything we believe about what it means to love, to lose, to die and, above all, to belong. It will leave no reader unaffected.