Russ Evans, Pilot 3497, Rocket Squad Patrol 34, unsnapped his seat belt, and with a slight push floated “up” into the air inside the weightless ship. He stretched himself, and yawned broadly. “Red, ho...

“And that,” said Arcot between puffs, “will certainly be a great boon to the Rocket Patrol, you must admit. They don’t like dueling with these space-pirates using the molecular rays, and since molecul...

“Our civilization,” continued Zezdon Afthen, “is built largely on the knowledge of the mind. We cannot have criminals, for the man who plots evil is surely found out by his thoughts. We cannot have ly...

The Ortolians were standing on a low, green-clad hill. Below them stretched the green flank of the little rise, and beyond lay ridge after ridge of the broad, smooth carpet of the beautiful Vermont hi...

After Morey’s explanation of the ship was completed, Wade took Arcot’s place at the controls, while Morey and Arcot retired to the calculating room to do some of the needed mathematics on the time-fie...

“What happened to him, though?” asked Wade, bewildered. “I haven’t yet figured it out. He went down in a heap, and he didn’t have any power. Of course, if he had his power he could have pulled out aga...

Wade sat staring moodily at the screen for some time, while Zezdon Afthen, sunk in his own reveries, continued. “Our race was too highly psychic, and too little mechanically curious. We learned too li...

Fifteen minutes after they started, they came to Shesto. They were forced to land, and explain, for their relux ship was decidedly not the popular Talsonian idea of a lifesaver. Shesto was defended by...

The generator Arcot had brought was one of the two spare generators used for laboratory work. He took it now into the substation, and directed the Talsonian students and the scientist in the task of c...

“It is still incredible. But you have done it. It is certainly successful!” said the Talsonian scientist with conviction. Arcot shook his head. “Far from it⁠—we have not realized a thousandth part of ...

“Squadron commander Tharnton speaking: Squadron 73-B of Planetary Guard will follow orders from Dr. Arcot directly. Heading south to Antarctica at maximum speed,” droned the communicator. Under the of...

They landed about half an hour later, and Arcot simply went into the cottage, and slept⁠—with the aid of a light soporific. Morey and Wade directed the disposition of the machines, but Dr. Arcot senio...

The Ancient Mariner stirred, and rose lightly from its place beside the city. Visible over the horizon now, and coming at terrific speed, was a fleet of seven Thessian ships. They must do their best t...

“Well, Sirius has retreated a bit,” observed Arcot. The star was indeed several trillions of miles away. Evidently they had not been motionless as they had thought, but the interference of the Thessia...

Again there was a period of intense labor, while the ship drifted through time, following Earth in its mad careening about the sun, and the sun as it rushed headlong through space. At the end of a thi...

They were getting very near their own time, Arcot felt. Indeed, they must already exist on Earth. “One thing that puzzles me,” he commented, “is what would happen if we were to go down now, and see ou...

It was night. The stars visible through the laboratory windows winked violently in the disturbed air of the Heaviside layer, for the molecular ray screen was still up. The laboratory was dimly lighted...

“I am sorry, Arcot. I did not know, for I see I might have helped, but to me, with my ideas of horror, it was as you said, amusement,” said Torlos. They were sitting now in Arcot’s study at the cottag...

It had been an anxious hour for the forces of the Solar System. They were in the last fine stages of Earth’s defense when the general staff received notice that a radio message of tremendous power had...

Some time later, Arcot spoke. “I have just received a message from Zezdon Fentes that he has an important communication to make, so I will go down to New York instead of to Chicago, if you gentlemen d...

But it seemed, or must have seemed to any infinite being capable of watching it as it moved now, that the Thought was a mad thought. With the time control opened to the limit, and a touch of the space...

Through the utter void of intergalactic space sped a tiny shell, a wee mite of a ship. Scarcely twenty feet long, it was one single power plant. The man who sat alone in it, as it tore through the voi...

Up from Earth, out of its clear blue sky, and into the glare and dark of space and near a sun the ship soared. They had been holding it motionless over New York, and now as it rose, hundreds of tiny c...

Streaking through the void toward Thett was again a tiny scout ship. It carried but a single man, and with all the power of the machine he was darting toward distant Thett, at a speed insanely reckles...

The Thought arose from Venone after long hours, and at Arcot’s suggestion, they assumed an orbit about the world, at a distance of two million miles, and all on board slept, save Torlos, the tireless ...

“What we must find,” said Arcot, between contented puffs, for he had slept well, and his breakfast had been good, “is some weapon which will attack them, but won’t attack us. The question is, what is ...

Islands of Space. ↩ The Black Star Passes. ↩...