The Third Twin

Twin brothers Jonny and Shamus decide to spend the night in Westminster Abbey, but could never have anticipated that one of them would be held hostage by the ghostly crowd of princes, kinds and warriors who came to life at midnight. By dawn, Jonny has disappeared, leaving Shamus to convince everyone that ghosts do exist and that Jonny was with them. Or did the ghosts exist only in his imagination? And if so what has happened to Jonny?