In her eagerly anticipated second novel, Mail on Sunday Novel Competition winner Isabel Ashdown explores the treacherous territory of adolescent friendships and traces the repercussions of a dangerous relationship across the decades. It's been more than 20 years since Sarah Ribbons last set foot inside her old high school, a crumbling, Victorian-built comprehensive on the south coast of England. Now, as she prepares for her school reunion, 39-year-old Sarah has to face up to the truth of what really happened back in the summer of 1986...