We are all agreed that this person exists. The point is—where did he go?” Poirot shook his head reprovingly. “You are in error. You are inclined to put the cart before the horse. Before I ask myself, ‘Where did this man vanish to?’ I ask myself, ‘Did such a man really exist?’ Because, you see, if the man were an invention—a fabrication—how much easier to make him disappear! So I try to establish first that there really is such a flesh and blood person.”