Through the window beside him, he could look out of his skyscraper apartment over the domed city of Ranthoor. Looming in the sky, slightly distorted by the heavy quartz of the distant dome, was massive Jupiter, a scarlet ball tinged with orange and yellow. Overwhelmingly luminous, monstrously large, it filled a large portion of the visible sky, a sight that brought millions of tourists to the Jovian moons each year, a sight that even the old-timers still must stare at, drawn by some unfathomable fascination. Ben Wrail stared at it now, puffing at his cigar, listening to the radio. An awe-inspiring thing, a looming planet that seemed almost ready to topple and crash upon this airless, frigid world. Wrail was an old-timer. For thirty years--Earth years--he had made his home in Ranthoor. He had seen the city grow from a dinky little mining camp enclosed by a small dome to one that boasted half a million population. The dome that now covered the city was the fourth one. Four times, like the nautilus, the city had outgrown its shell, until today it was the greatest domed city in the Solar System. Where life had once been cheap and where the scum of the system had held rendezvous, he had seen Ranthoor grow into a city of dignity, capital of the Jovian confederacy. He had helped build that confederacy, had been elected a member of the constitution commission, had helped create the government and for over a decade had helped to make its laws. But now ... Ben Wrail spat angrily and stuffed the cigar back in his mouth again, taking a fresh and fearsome grip. Now everything had changed. The Jovian worlds today were held in bond by Spencer Chambers. The government was in the hands of his henchmen. Duly elected, of course, but in an election held under the unspoken threat that Interplanetary Power would withdraw, leaving the moons circling the great planet without heat, air, energy. For the worlds of the Jovian confederacy, every single one of them, depended for their life upon the accumulators freighted outward from the Sun. Talk of revolt was in the air, but, lacking a leader, it would get nowhere. John Moore Mallory was imprisoned on one of the prison spaceships that plied through the Solar System. Mallory, months ago, had been secretly transferred from the Callisto prison to the spaceship, but in a week's time the secret had been spread in angry whispers. If there had been riots and bloodshed, they would have been to no purpose. For revolution, even if successful, would gain nothing. It would merely goad Interplanetary Power into withdrawing, refusing to service the domed cities on the moons. * * * * * Ben Wrail stirred restlessly in his chair. The cigar had gone out. The radio program blared unheard. His eyes still looked out the window without seeing Jupiter.