The crystal planetoids

It was as Dunbar had remarked. For nearly a month, unexampled meteorological disturbances had been occurring throughout the earth. Not only in the northern hemisphere had a reco...

Straight up and up a swinging ladder the prisoner was borne for scores of yards; while, as he gazed into the abyss and thought of the result if his captor's hold should slacken,...

"Earth-Men, we are not impatient! We know your minds work like rusty hinges--but what else can be expected of the minor planets? So take a little time. Consult with one another....

For a moment after the departure of the two other humans along with Zoltevi and Quimboson, no sound was audible except that of the threshing, sighing cables, and of the deep, th...

At almost any other time in modern history, the disappearance of a promising young scientist would have created a sensation. As it was, the newspapers were so preoccupied with o...

Lethemaz, the paralyzing drug of the Saturnians, had one quality for which Gates was sometimes thankful, and which sometimes he bitterly cursed. Despite the total incapacity of...

Hour after hour Gates had been watching his captors. Hour after hour he had been scheming, observing, hoping. With the heightened mental quickness of his paralyzed state, he was...

If only she could get word to some one outside! If only some one could learn of her plight, she might be saved--might save the world! Such was the thought that kept pounding at...

Beneath the great translucent milky-white envelope of the Planetoid, Gates stood in an egg-shaped jelly-like car about thirty feet tall. He was still invisible, even to himself;...

The story of Officers Frye and O'Madden was greeted at the station with incredulous smiles. Evidently these two doughty old members of the force had been drinking too heavily; o...

There are some grave disadvantages in being invisible. So, at least, Gates concluded as he went groping through the woods in the effort to find his bearings. It is disconcerting...

Stripped to the waist, Philip Dunbar worked in the electric glare of the oven-hot laboratory. The throbbing of motors made a dull undertone in his ears as he examined the regist...

Gates' first thought, after recovering his breath, was to finish his half-completed task. What if the Saturnian retreat were but temporary? What if the foe should rally, and ret...