'AN EXCEPTIONAL STORYTELLER' Khaled Hosseini, author of The Kite Runner'Ingenious'New York Times Book Review'Compelling'Daily Telegraph'Fast-moving'Spectator'Cinematic'Marie Claire'Gripping'New York MagazineFrom the co-creator and writer of the award-winning HBO series Game of Thrones, a captivating novel about war, courage, survival and a remarkable friendship that ripples across a lifetime.Four ...