"Yes. It is hard to put it into language that will be clear to one who has no knowledge of our science. Perhaps I can explain it by saying that the human eye is a three-dimensional organism, and therefore capable of perceiving only things that fall into that same category. There are a great many things in the universe, some of the greatest importance, that the ordinary man's senses are incapable of perceiving. We have learned how to cast a protective screen of fourth-dimension rays about our city, and the effect is that it becomes completely invisible to the human eye. Do I make myself clear?"
"Not entirely," Gerry grinned. "But I do know that your screen works! But, since your science is so far ahead of the other people of Venus, why don't you rule the entire planet?"
"The other races are all barbarians," Gool said with a sort of disdainful gravity. "We prefer to live here in our peaceful isolation and not bother with them. That is an essential part of our philosophy."
The speeding mono-rail car mounted higher as it neared the center of the city. The track seemed to end on the blank wall halfway up the tallest of the buildings, but as the car came near a circular doorway suddenly opened just in time to let it through. They halted in a circular chamber where heavy springs caught and allayed the last of the car's momentum, and a pair of gold-helmeted guards saluted Gool as they helped him to alight.
"The Council is ready and waiting, my Lord," said one. Gool nodded over his shoulder to Gerry.
"Follow me," he commanded.
The Council of Elders of Moorn sat at a U-shaped table in a high-ceilinged room whose walls were hung with heavy and very ancient tapestries. The dozen members of the council were all old men, gray-beards who seemed dwarfed by the high-backed chairs in which they sat. They listened with grave attention to Gerry's account of what he had seen of conditions on Venus, but their austere faces showed no sign of animation when he again suggested that they should intervene in the planet's affairs.
"We are not interested," Gool said listlessly.
Suddenly the short-wave alarm in Gerry's helmet buzzed loudly. He pressed the receiving switch.
"Listen, Chief!" Steve Brent's voice was tense and excited as it came from the ear-phones, "I just got a message from Tanda back in Larr. There's hell to pay back there! The Scaly Ones have in some way managed to storm one of the barrier forts, and now they're pouring over the borders of Savissa in great hordes. They're armed with supode rays, too!"