Shortlisted for the 2015 James Tait Black Memorial PrizeLonglisted for the 2015 Baileys Women's Prize for FictionLonglisted for the 2015 Jerwood PrizeIn the middle of a winter s night, a woman wraps herself in a blanket, picks up a pen and starts writing to an estranged friend. In answer to a question you asked a long time ago, she writes, and so begins a letter that calls up a shared past both w...