For a breathless moment he saw the girders and cables of the ceiling hurtling toward him. Instinctively he grabbed with both hands at one of the lower girders as his body thudded into it. His clutching fingers slipped momentarily, then held, leaving him dangling there at arms' length thirty feet above the floor.
His wits swiftly clearing from the shock of that mighty toss through space, Foster scrambled up on the narrow girder. Sitting astride the metal beam, he looked down at the scene below.
The battle down there was nearly over. The glowing slug in the machine was now obviously trying to capture the remaining men alive for further use. Instead of slaying, its lashing arms fought only to stun and cripple.
Six of the men still remained on their feet but they were trapped in an angle between heavy apparatus and one of the walls. In the central case the ten semi-dormant slugs, still too inactive to take part in the battle themselves, seemed watching the conflict with great unwinking eyes of crimson.
Foster groaned. The metal colossus was too powerful for their feeble efforts. It would take a bolt of lightning to have any effect upon that mighty engine of war. At the thought, Foster's heart leaped in sudden inspiration. There was lightning, the terrific electrical force of a spinning planet, in the cables up here among the girders, if he could only release it.
Slightly below his position and barely six feet away from him one of the main power cables of the cavern was suspended from heavy insulators. If the cable had ever had an insulating sheath around it the fabric had vanished during the centuries for the dull silver-colored metal was now completely bare.
If that naked cable could be dropped into contact with Layroh's machine-body, the entire power of one of the cavern's main lines would be grounded through the metal of the machine. The position of the cable with regard to where the machine was now, was perfect for the scheme. If Foster could sever the cable just opposite him there was an excellent chance that the longer one of the free ends would drop directly upon the machine.
And in his possession he had a possible means of severing that cable—the pistol that was still crammed in his belt. There were four shots remaining in the pistol. The cable was barely half an inch thick, but the range was so short that he could not very well miss. If the silver-colored metal was as soft as it looked, the heavy bullets should be enough to tear through it.