"In her guise as 'Dear Amy', agony aunt for a local newspaper, Margot Lewis has dealt with all sorts of letters - but never one like this . . . Dear Amy, I've been kidnapped by a strange man. I don't know where I am. Please help me, Bethan Avery This must be a cruel hoax. Because Bethan Avery has been missing for nearly two decades. But as the present-day search intensifies for another missing schoolgirl, Margot is unnerved enough to take the letter to the police, hoping they will dismiss it as a sick joke. Instead, they let Margot in on a little secret. One that confirms her darkest fears and tangles her up in the search for the sender, which could save one young girl's life and cost Margot her own . . ."