"They found the secret, all right. No use, Morey, come on up," called the pilot. "They evidently put magnetic shielding around the apparatus. That means the magnetic beam is no good to us any more. They will certainly warn every other base, and have them install similar protection."

"Why didn't you try the magnetic ray on our first attack?" asked Zezdon Afthen.

"If it had worked, their sending apparatus would have been destroyed, and no message could have been sent to call their attackers off Fellsheh. By forcing them to recall their fleet I got results I couldn't get by attacking the fleet," Arcot said.

"I think there is little more I can do here, Stel Felso Theu. I will take you to Shesto, and there make final arrangements till my return, with apparatus capable of overthrowing your enemies. If you wish to accompany me—you may." He glanced around at the others of his party. "And our next move will be to return to Earth with what we have. Then we will investigate the Sirian planets, and learn anything they may have of interest, thence—to the real outer space, the utter void of intergalactic space, and an attempt to learn the secret of that enormous power."

They returned to Shesto, and there Arcot arranged that the only generator they could spare, the one already in their possession, might be used till other terrestrian ships could bring more. They left for Earth. Hour after hour they fled through the void, till at last old Sol was growing swiftly ahead of them, and finally Earth itself was large on the screens. They changed to a straight molecular drive, and dropped to the Vermont field from which they had taken off.

During the long voyage, Morey and Arcot had both spent much of the time working on the time-distortion field, which would give them a tremendous control over time, either speeding or slowing their time rate enormously. At last, this finished, they had worked on the artificial matter theory, to the point where they could control the shape of the matter perfectly, though as yet they could not control its exact nature. The possibility of such control was, however, definitely proven by the results the machines had given them. Arcot had been more immediately interested in the control of form. He could control the nature as to opacity or transparency to all vibrations that normal matter is opaque or transparent to. Light would pass, or not as he chose, but cosmics he could not stop nor would radio or moleculars be stopped by any present shield he could make.

They had signaled, as soon as they slowed outside the atmosphere, and when they settled to the field, Arcot's father and a number of very important scientists had already arrived.

Arcot senior greeted his son very warmly, but he was tremendously worried, as his son soon saw.

"What's happened, Dad—won't they believe your statements?"

"They doubted when I went to Luna for a session with the Interplanetary Council, but before they could say much, they had plenty of proof of my statements," the older man answered. "News came that a fleet of Planetary Guard ships had been wiped out by a fleet of ships from outer space. They were huge things—nearly half a mile in length. The Guard ships went up to them—fifty of them—and tried to signal for a conference. The white ship was instantly wiped out—we don't know how. They didn't have ray screens, but that wasn't it. Whatever it was—slightly luminous ray in space—it simply released the energy of the lux metal and relux of the ship. Being composed of light energy simply bound by photonic attraction, it let go with terrible energy. They can do it almost instantly from a distance. The other Guards at once let loose with all their moleculars and cosmics. The enemy shunted off the moleculars, and wiped out the Guard almost instantly.