Sleep was not to be dreamed of that night for either of us well people. I had thought of a plan. Leaving Miss Ottley to watch the unconscious but ceaselessly babbling patient, I scoured out the sarcophagus, and then built an enormous fire before the pylon. Over this I hung the Arab\'s cauldron. By nightfall I had the sarcophagus nigh abrim with hot water. It formed a huge but most admirable bath. It was a heroic experiment to make; but the dark angel was in the cavern and I had little chance left. Kill or cure. It seemed a toss of the coin either way, for Sir Robert was dying fast. After the bath he slipped into a state of blank insensibility. Miss Ottley thought him asleep, and she took heart to hope. I did not deceive her. For four hours I waited, my finger continually on his pulse. It grew continually weaker. I administered nitro-glycerine every half hour, but at length even that spur failed.