* * * * * And now Jaska had failed Sarka, when for half a century they had loved each other! Why had she done it? He had given her no reason to do so. Had there been some other reason? Why had she laughed, and left them, after the betrayal of the Master Beryl into the hands of Dalis? "Before God," whispered Sarka, "I believe that you, Jaska, were playing a game to dupe Dalis, as he played a game to dupe us!" Down in his heart he was not sure. But somehow, just to whisper to himself his faith in Jaska, gave it back to him in some measure, and by so much lightened the weight upon his heart. For now his responsibilities were greater than they had ever been before, and he had need of all his faculties. "She'll come back, or somehow communicate with me, and explain everything," he told himself. But he refused to ponder on how Dalis the betrayer had gained possession of the secret sign manual he had believed known only to Jaska and himself. That, too, might be explained satisfactorily, for Dalis was cunning. From the side of the laboratory opposite the Revolving Beryl came a soft tinkling sound, like the striking of a musical bell. Sarka rose wearily, strode to the wall, where a narrow aperture opened, in which rested Food Capsules sufficient for one meal for three men. He smiled wryly. They knew then, the Food Conservers deep in the earth as they were, that Sarka the First was no more--and sent food for three men! All the world knew, perhaps, yet no single person had raised voice in protest--or if any had, the mounting murmur of the Beryls had drowned it out. * * * * * "Sarka!" spoke Dalis suddenly. "At what time do you estimate that the flight of the Earth in its orbit will be materially affected?" "It is being affected this moment, Dalis, shifting the Ovidum store!" said Sarka shortly. "Within twelve hours we will be in readiness to start our journey!" Remaining absolutely motionless within the domed laboratory, it was now possible to feel the ever so slight motion, not only of the laboratory, but of the mountain crest upon which it rested. Not so much a to-and-fro motion as a round-about motion. Just as the slightest sound flies outward through space endlessly, and the slightest vibration moves outward until the end of time and of space, Sarka knew that the vibration set up by the Beryl, slight though it was, was already being felt at the Poles of the Earth. Not enough to be noticed there, but existant, just the same. "In twelve hours the world will be fighting against this combined vibration and Anti-Gravitational Force we are starting, and second by second accelerating," Sarka explained to Dalis: "fighting to remain on its pathway about the Sun! But we will win against it, and with each new vibration, each succeeding one being more strongly felt, we will force the Earth that much more against the _pull_ which holds it in its orbit!"