In this pitiable condition, the sixth and last morning dawned upon Vivenzio, if dawn it might be called--the dim, obscure light which faintly struggled through the ONE SOLITARY window of his dungeon. He could hardly be said to notice the melancholy token. And yet he did notice it; for as he raised his eyes and saw the portentous sign, there was a slight convulsive distortion of his countenance. But what did attract his notice, and at the sight of which his agitation was excessive, was the change his iron bed had undergone. It was a bed no longer. It stood before him, the visible semblance of a funeral couch or bier! When he beheld this, he started from the ground; and, in raising himself, suddenly struck his head against the roof, which was now so low that he could no longer stand upright. "God's will be done!" was all he said, as he crouched his body, and placed his hand upon the bier; for such it was. The iron bedstead had been so contrived, by the mechanical art of Ludovico Sforza, that as the advancing walls came in contact with its head and feet, a pressure was produced upon concealed springs, which, when made to play, set in motion a very simple though ingeniously-contrived machinery, that effected the transformation. The object was, of course, to heighten, in the closing scene of this horrible drama, all the feelings of despair and anguish, which the preceding ones had aroused. For the same reason, the last window was so made as to admit only a shadowy kind of gloom rather than light, that the wretched captive might be surrounded, as it were, with every seeming preparation for approaching death. Vivenzio seated himself on his bier. Then he knelt and prayed fervently; and sometimes tears would gush from him. The air seemed thick, and he breathed with difficulty; or it might be that he fancied it was so, from the hot and narrow limits of his dungeon, which were now so diminished that he could neither stand up nor lie down at his full length. But his wasted spirits and oppressed mind no longer struggled within him. He was past hope, and fear shook him no more. Happy if thus revenge had struck its final blow; for he would have fallen beneath it almost unconscious of a pang. But such a lethargy of the soul, after such an excitement of its fiercest passions, had entered into the diabolical calculations of Tolfi; and the fell artificer of his designs had imagined a counteracting device.