He leaned forward, striving with all his will to force his hands to go truly to their target as he fell. He had little or no control of his legs or knees. But let him once hold that tube in his hands.... He fell soundlessly, his hands clutching for the tube. His fingers touched it as he crashed to the floor, and it fell near him. His fingers fumbled for the tube and now gripped it tightly. From under the table, writhing and twisting, striving to break his mental bondage, Bentley saw the legs of Caleb Barter. He snapped the button on the tube and turned its open end toward those legs. "I must not look into his eyes as he falls," thought Bentley, "or all is lost." - - - A terrible scream rang through the operating room. Barter was falling, crumpling as he fell, and as his body slid downward past the table edge, Bentley held the end of the tube toward it. As the bodies of the eight had shriveled, so shriveled the body of Caleb Barter. Ellen Estabrook screamed horribly, and sprawled on the floor within a foot or two of Bentley. Nature had mercifully sent her into momentary oblivion when the will of Barter, holding her in thrall, had snapped to show her the horror of what she did. Naka Machi was screaming. Bentley was Bentley again, crawling forth from under the table. Naka Machi met him in a rush and dissolved before the deadly ray as though he had never existed. Its effect must have been a silent explosion, for a fine gray ash came down from the ceiling as the residue which falls when a soaring rocket has exploded and expended its power. The gray ash was Naka Machi, forever rendered harmless to Ellen. Bentley walked over and stood looking at the manapes in their cages. What could be done with them? There was no hope, no possible way by which they could resume their normal lives, for of their human bodies there remained but heaps of fine powdery ashes. Suddenly the manape Keller swept his great hairy arm out between the bars and snatched the tube from Bentley's hand. With a cry of mortal anguish Bentley recoiled from the cage. God! Now all was lost if the manape clicked on the deadly ray and swept it over the room. Before he could formulate a plan of action, the manape pressed the fatal button. With a cry Bentley threw himself across the room to where Ellen lay unconscious, his only thought to somehow protect her from the tube. - - - But the manape, Keller, swung the ray upon the other apes with the human minds, and they dissolved into ashy nothingness with bewildering rapidity. The keen mind of Keller was doing what he knew must be done for the good of everyone concerned. Numbed with horror, Bentley saw the ray directed on Morton and Stanley. They fell silently and without protest....