As I did so, swift black tentacles thrust out and gripped Dal Nara and me, while another of the snaky arms swept up with the tool in its grasp for a blow on my head. Before it could fall, though, I had reached out with my right hand, holding to the chain with my left, and had grasped the body of the thing inside the window, pulling him outside before he had time to resist. As I did so my own hold slipped a little, so that we hung a few feet below the window, both clinging to the slender chain and both striking futilely at each other, he with the metal tool and I with my clenched fist. A moment we hung there, swaying hundreds of feet above the luminous stone street, and then the creature's tentacles coiled swiftly around my neck, tightening, choking me. Hanging precariously to our slender strand with one hand I struck out blindly with the other, but felt consciousness leaving me as that remorseless grip tightened. Then with a last effort I gripped the chain firmly with both hands, doubled my feet under me, and kicked out with all my strength. The kick caught the cone-body of my opponent squarely, tearing him loose from his own hold on the chain, and then there was a sudden wrench at my neck and I was free of him, while beneath Dal Nara and I glimpsed his dark body whirling down toward the street below, twisting and turning in its fall along the building's slanting side and then crashing finally down upon the smooth, shining street below, where it lay a black little huddled mass. Hanging there I looked down, panting, and saw that Hurus Hol had reached the chain's bottom and was standing in the empty street, awaiting us. Glancing up I saw that the blows of the creature I had fought had half severed one of the links above me, but there was no time to readjust it; so with a prayer that it might hold a few moments longer Dal Nara and I began our slipping, sliding progress downward. The sharp links tore our hands cruelly as we slid downward, and once it seemed to me that the chain gave a little beneath our weight. Apprehensively I looked upward, then down to where Hurus Hol was waving encouragement. Down, down we slid, not daring to look beneath again, not knowing how near we might be to the bottom. Then there was another slight give in the chain, a sudden grating catch, and abruptly the weakened link above snapped and we dropped headlong downward--ten feet into the arms of Hurus Hol. A moment we sprawled in a little heap there on the glowing street and then staggered to our feet. "Out of the city!" cried Hurus Hol. "We could never get to the condenser-switch on foot--but in the cruiser there's a chance. And we have but a few minutes now before the sleep-period ends!"