On the other side were fewer people--a bare half dozen, seated at various desks. Their superiority was not obviously displayed. Their clothing was, if anything, drabber and more severe, and the furnishings they used were in no way luxurious. But something in their manner, something in the way they glanced speculatively up from their work, put gulfs between them and those who uneasily waited. This time only two words were needed. _They knew._ Clawly II's arrival seemed to cause an increase in the uneasiness. At least, Thorn caught several frightened glances, and sensed a general relaxing of tension when it became obvious that Clawly II's mission did not concern anyone here. He also noted that the two guards seemed relieved when Clawly dismissed them. One other glance he thought he caught was of a perplexingly different sort. It was directed at him rather than Clawly II. It came from an elderly, gray-clad man, whose face awoke no sense of recognition either in this world or his own. It conveyed, if he was not mistaken, sympathy, anxiety, and--strangest of all--_loyalty_. Still, if Thorn II had been some sort of rebel leader, the incident was understandable. Thorn quailed, wondering if he had put himself into the position of betraying a worthy movement in this world as well as his own. Clawly II seemed to be a person of reputation on the other side of the room as well, for his clipped, "To the Servants' Hall, with a person for the Servants," passed them through without a question. They entered another corridor, and their surroundings began to change very rapidly. A few paces brought them to a subtronic tube. Thorn was glad that he was startled into moving jerkily when the upward-surging current gripped them, for a glance at Clawly II warned him that it would not be well to show much familiarity with this form of transportation. And now, for the first time since his plunge into World II, Thorn's mind began to work with clarity. It may have been the soothing familiarity of the current. Obviously, in World II subtronic power was the closely-guarded possession of a ruling elite. There had been no evidence at all of its employment on the other side of the dividing line. Moreover, that would explain why the workers and soldiers on the other side were kept ignorant of the true nature and theory of at least some of the instruments they constructed or used. It would also explain the need for the vast amount of work--there were two ways of life, based on entirely different power-systems, to be maintained.