The only invisible thing we've found is that piece of a garment we pulled off you."

"I broke my watch ray machine in the fall, and I can't make them believe, Rennell," almost wept old Evans. "Tell them I'm not crazy."

d.i.c.k got upon his feet with an effort, staggered a little, then made his way to Fredegonde. He kneeled down beside the girl. She was conscious, and smiled faintly, but she could not speak. He pressed her hand, rose, and came back. "Mr. Evans is not crazy," he said. "The headquarters of the gang is over there." He pointed. "Didn't President Hargreaves tell you?"

"He was kind of incoherent, sir." The marines looked at one another, wondering. Was Captain Rennell crazy too?

"We've had scouts out through the jungle, sir. There's nothing within five miles of here. They had a clear view through to the sea from the top of a hill."

"I've been there." d.i.c.k spoke with conviction. "I must tell you they've got devices that make them practically irresistible. That gas and other things. And they're invisible. But if you boys are willing to follow me, I'll lead you. It means death. I don't know what they're waiting for. But--are you willing to follow me?"

"We'll follow you, sir"--after a pause, during which d.i.c.k read in their eyes the desire to humor a crazy man. "We'll follow to h.e.l.l, sir--if that gang's really there."

"Take your arms, then!" d.i.c.k pointed to the stacked rifles.

A minute later the twenty-odd Marines, forming an open line that extended from one side of the clearing to the other, were on their way toward the headquarters of the gang. And d.i.c.k, leading them, though his head was reeling, felt as if his own reason was slipping from him.

Had he only dreamed all this? Was it possible that the headquarters of the Invisible Emperor existed on this desolate prairie? If it was true, why had they suddenly become silent, inert? Why had they not long ago wiped out these few Marines? And the gale--was it now sweeping northward on its mission of destruction?

Half an hour pa.s.sed. Then the brown patches of the foundations came into view upon the open ground. Here were the hangers, here was the central building with the Emperor's headquarters. And nothing was visible, nothing stirred, yet at any moment d.i.c.k expected the rattle of machine-gun bullets or some more terrific method of destruction.

"Halt!" The line stood still. "I am going forward ahead or you. You'll follow at a distance of twenty paces. When you see me stop, feel for the door in the wall, and if I disappear, follow me. You understand?"

The Marines a.s.sented cheerfully. No harm in humoring this poor devil of an officer who had crashed and lost his wits. Like Luke Evans, shambling up through the line to d.i.c.k's side. d.i.c.k advanced. At any moment now the concentrated fire of the Emperor's men should blast them all to smithereens. Nothing happened.

And it was no dream, for d.i.c.k's outstretched hand encountered the exterior wall of the building. He had gauged his way accurately, too, for a step or two brought him to the door. He stepped inside. He was inside the private door that led to the Emperor's quarters, through which he had pa.s.sed with Fredegonde, Hargreaves, and Luke Evans in their flight. It had been broken down, contrary to the girl's predictions, and the deserted pa.s.sage within was perfectly visible to them all.

Stupefied, the Marines b.u.mped and jostled with each other as they crowded in. If they had been anything but Marines, their own heads might have been turned at the discovery of this sudden materialization of a building out of nothingness.

Being Marines, they only grinned sheepishly, and followed along the corridor.

The first human being they saw was one of the guards, in a black tunic. He was leaning against a wall, and he was a human being no longer. He looked as if he was asleep, but he was stone dead, with a placid look on his face.

Two more dead guards lay across each other, with smiles on their faces: and there was a workman in a blue blouse who had been in a tremendous hurry to get somewhere, from his appearance, and had never got there. He had fallen asleep instead, and never wakened.

d.i.c.k found a stairway and led the way up. He thought it ran up to the laboratory, but, instead, the room into which he emerged was the ante-room of the Invisible Emperor's audience hall. Six dead guards lay in a heap in front of the curtain, and they had died as unconcerned as their fellows, to judge by the pacific expressions on their faces.

d.i.c.k pa.s.sed through into the throne room. The Marines, behind him, for the first time uttered exclamations of awe--of pity.

The terrific scene that met d.i.c.k's eyes would be burned into his brain till his last day.

Upon his throne, head flung back, sat the Invisible Emperor, his features set in a sardonic leer of death. And all about him, some sitting, some lying, supporting one another, were his court, officers in black uniforms with the silver braid, and women in court dress. And all were dead too. But they had not known they had died. They had fallen asleep--upon the instant that their own volatile gas reached them.

"I guess that's the explanation, sir," said old Luke Evans. "Those devils made the whirlwind and charged it with the gas. But when you reversed that lever, you reversed the process. Instead of projecting the force outwardly, you made a suction, and every atom of the gas that hadn't travelled beyond the radius came rushing back and filled the building. If we'd entered a half-hour later, we'd have been dead ones ourselves, but the gas was volatile enough to disperse through the c.h.i.n.ks and crannies. Anyway, it's all over now."

Yes, it was all over, d.i.c.k thought, as he sat in his deck chair upon the cruiser that was bearing him northward. The menace to world government had been destroyed and with it all who had been behind it.

There would be a new order in the world, a new and kindlier government. Men would feel closer to one another than in the past.

Half the personnel of the fleet had escaped the invisible death, and only one cruiser and the dirigible had been lost in the confusion.

There would be a great reception when they put into Charleston.

d.i.c.k bent over Fredegonde, who was asleep in her chair beside him. The ship's surgeon had promised recovery for her. She shouldn't suffer for her half-voluntary part in the business, d.i.c.k said to himself. It was going to be his task to help her to forget.

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Prisoners on the Electron

_By Robert H. Leitfred_

[Sidenote: Fate throws two young Earthians into desperate conflict with the primeval monsters of an electron's savage jungles.]

[Ill.u.s.tration: _The gaping mouth jerked forward._]

The blood-red glow of a slanting sun bathed the towers of New York's serrated skyline, then dropped into a molten sea beyond the winter horizon. Friday, the last day of Jupiter, the thirteenth month of the earth's new calendar, had drawn to a close. In a few hours the year of 1999 would end--at midnight, to be exact.

Far below the towers stretched well lighted canyons teeming with humanity. At an upper level where once the elevated trains had roared and rumbled in an antiquated period long past, an orderly ma.s.s of workers and shoppers was borne at an incredible speed from lower Manhattan to towering apartments that stretched northward to Peekskill. The northbound traffic was heaviest at this hour and the moving sidewalk bands were jammed to their capacity.

Street cars, now obsolete, had vanished from the streets under the new order of things as had also pa.s.senger cars, taxis and trucks. Speed predominated. Noise had practically been eliminated. Except for the gentle throb of giant motors far underground, the city was cloaked in silence.

At regular intervals along the four-speed moving bands that formed the transportation of the great metropolis, huge circular shafts of steel mounted upward beyond the roofs of the tallest buildings. Within these shafts, swift elevators carried pa.s.sengers who lived in the outlying districts to the level of the station platforms of the interstate operating transport planes.

Close to the entrance of one of the steel shafts stood a young man a little above medium height. His deep-sunken eyes were those of a dreamer, a searcher. They were the eyes of a man who had seen strange and startling things. At present they were staring into the pulsing wave of humanity flowing northward on the endless steel bands beyond the platform.

Quite suddenly they lighted with pleasure as a man and a girl detached themselves from the swift moving river of people and hurried to the spot where he stood.

"Think we were never coming?" Karl Danzig's eyes were much like those of Aaron Carruthers. Just now they sparkled with suppressed excitement.

Aaron Carruthers smiled in turn. "No, Karl. Any man but you. I couldn't imagine you being late." He turned his attention to the slim, dark haired girl. "Nanette," he murmured, extending his hand, "I didn't think you'd come."

Dazzling white teeth caught the glow of the blue-white incandescents along the platform, and became under the bow of her red lips a string of priceless pearls.

"I had to come, Aaron. Karl has done nothing but talk of your amazing discovery. The experiment fairly frightens me at times especially when I recall the sad fate of your friend, the missing Professor Dahlgren.

I wish you boys would give up the idea--"

"Nan, be still," broke in Karl, with brotherly rudeness. Turning to Carruthers. "Everything all ready, Aaron?" he asked.

Carruthers nodded. "As far as humanly possible. The element of error is always present. I've checked and re-checked my calculations. I've augmented the vacuum tubes by installing three super-dimensional inverse power tubes." He clasped the girl's arm. "The street is no place to talk. Let's go to the laboratory."