A party. A nightmare. A child gone without a trace.It started out as a party: six little girls gliding and giggling at the ice rink to celebrate Natalies daughters eighth birthday.But by Natalies next head count, its turned into a crime scene. Six children went onto the iceand now there are just five. Nobody saw her niece, Elle, being taken. Nobody saw the person in a cartoon costume lure her quietly away.Traumatised by what happened on her watch, Natalie spends the next decade supporting her sister, Jo, as the years since Elles abduction tick by. But as the tenth anniversary approaches, Jo becomes convinced that someone is stalking hersomeone who knows the truth about that day on the ice.As long-buried secrets start to surface, the sisters must relive the horror of losing Elleand watch the world as they know it shatter before their eyes.