Encouraged, the godsman cried, "Let Crookback swear to it. He was willing to declare it." "Will you?" the High Arbiter asked Crookback. "Though I am sure of the truth, my reverence for the God Mother-Father is too great to permit me to swear to the contents of another's mind--" "That, and not wanting to be tried for false swearing," Snubnose muttered. He admired his old master a lot less. "--but I will swear by the God Mother-Father that I myself am ignorant of the theory." "What good is that?" the godsman demanded. Cleverly, the master stood in respectful silence. There was an awkward pause--awkward for the godsman and the High Arbiter--and then the High Arbiter collected himself and said, "The question may be answered. I will hear the Candidate's master." "I am shocked and saddened," said Crookback, "that the holy one believes that apprentices, still wearing their neckbands, excel in wisdom the masters of the guilds." The High Arbiter's driver, who had been squatting meekly by the elephant, suddenly let loose a screaming laugh, which he cut off just as suddenly with a scared catch of breath. "I will hear the oath," the High Arbiter said. Crookback swore by the God Mother-Father while the godsman glowered. The High Arbiter said, "The demonstration may proceed. My apprentices will present my bills tomorrow, including commutation of fees for twenty journeyman lawyers, since you did not place the issue in King's Courts." Everybody winced, and the elephant rumbled away. * * * * * The doors of the Ready Hall opened, and the whole body of apprentice scientists marched on the Field. They carried sections of steel sheet, lengths of magnesium tubing, and parts of machines unfamiliar to the guildfolk. Under Bump-arch's direction they began to assemble the equipment and to enclose it in a small building. Bump-arch had planned well. They put the components together quickly, and marched from the Field. They had erected a cubical chamber of bright steel with an opening near the ground just big enough for a person--not too fat a person--to crawl through. Above the opening a closing panel was suspended in grooves. The Grandmaster and the godsman and the kingsman inspected the setup with the peculiar ignorant attention of high officials. Each walked around the cube once and rapped it with his fingers here and there. Each solemnly stooped to the ground and put his head in the opening, although it was dark inside and nothing was visible. The plump godsman made a move as if to crawl in, then backed away. The kingsman brushed dust from his cloak, and the inspection seemed to be over. The three officials and Crookback withdrew to the circle of scientists and stood just within it, a little to the left of Snubnose. Bump-arch took hold of the door panel, the only projection on the smoothness of the cube, and scrambled to the roof, where he could be seen by the whole circle.