The natural repugnance of the flesh to so horrible a situation was too strong for the spirit, and Jack could not restrain a convulsive shudder, which shook him from head to foot. His father groaned in rage and agony. CHAPTER XLIII. THE FACE AT THE DOORWAY. The sullen face of the Ruby King was lighted up with a smile of deep relish. His savage nature was pleased to its depths to see the effect this simple but exquisite torture had upon the Englishman within his grasp. Again he drew back a pace, and waited a moment for Jack to recover himself. Next he waved to the men who were holding Thomas Haydon to bring their prisoner closer to the bound captive. They did so, and now the position of those gathered in the ruined courtyard was as follows. Jack faced the doorway, and the Ruby King and the half-caste, with their followers clustered behind them, were on his left. His father, under charge of the guards, was on his right, and the fire, which was now at its highest, lighted the whole scene in most brilliant fashion. Now U Saw raised his arm and stepped forward. His evil grin shone out once more. He was enjoying himself to the full. Jack braced his back against the post and clenched his fists as tightly as the ropes around his wrists would allow, and set his teeth to endure without flinching. His eyes were staring straight before him, into the blackness of the ruined doorway. Suddenly into that patch of darkness there flashed a face, peeping in on the scene, and as suddenly vanishing. Jack gave a great start and a gasp. Was the torture turning his brain? He had known that face, but it was not the face of any living man. It was the face of Me Dain, their brave guide, who had fallen headlong into the raging torrent, close-grappled with his foe. Jack's movement was hailed by a grim chuckle from the ring of hostile faces. They misjudged it altogether. U Saw once more held the cobra forward, and glanced with savage meaning at both father and son. Thomas Haydon watched the evil creature with fascinated eyes, and saw that the Ruby King was loosening ever so slightly, and little by little, his grasp of the head, so that the venomous reptile was working forward through the leathern grip towards Jack's breast. By tiny degrees the cobra worked itself on and on, but Jack saw it not. His eyes were strained into the outer darkness. What had it meant, that face? Was it a mere fancy, or was there more behind it than he dreamed of? Then, with another great start of his frenzied, overwrought body, he saw something else, a thing which none saw save himself, for every eye was fixed on the deadly, wriggling serpent, fighting to get his venomous fangs into that smooth white breast.