Astounding Stories of Super-Science, November, 1930

"Indeed not. There is another inhabited satellite of Jupiter, next farthest from the mother planet. Ganymede, you call it. It is from there that these conquerors are to set forth."

"Many of them?" inquired Mado.

"Two million or so. They're prepared to send an army of more than a tenth of that number on the first expedition."

"A mere handful!" Carr was contemptuous.

"True, but they are armed with the most terrible of weapons. Your people are utterly unprepared and, unless warned, will be driven from their cities and left in the deserts to perish of hunger and exposure. This is a real danger."

"Something in it, Carr, if what he says is true. We've no arms nor warriors. Haven't had for two centuries. You know it as well as I do."

"Bah! Overnight we could have a million armed and ready to fight them off."

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Detis raised his hand. "You offend me," he said gravely. "I have told you this in good faith and you reward me with disbelief and boastful talk. Your enemies are more powerful than you think, and your own people utterly defenceless against them."

"I'm sorry," Carr apologized, "and I'll listen to all you have to say. Surely your prince has not given his life in vain." He was ashamed before this scientist of Europa.

A tinkling feminine voice from the next room called something in the Europan tongue.

Detis raised his head proudly and his frown softened at the sound of dainty footsteps. His voice was a caress as he replied.

A vision of feminine loveliness stood framed in the doorway and the visitors rose hastily from their seats. Carr gazed into eyes of the deepest blue he had ever seen. Small in stature though this girl of Europa was – not more than five feet tall – she had the form of a goddess and the face of an angel. He was flushing to the roots of his hair. Could feel it spread. What an ass he was anyway! Anyone'd think he'd never seen a woman in all his thirty-five years!

"My daughter, Ora, gentlemen," said Detis.

The girl's eyes had widened as she looked at the huge Martian with the funny black box on his back. They dropped demurely when turned to those of the handsome Terrestrial.

"Oh," she said, in Cos, "I didn't know you had callers."

CHAPTER VI

Vlor-urdin

The time passed quickly in Pala-dar, city of the golden domes. Detis spent many hours in the laboratory with his two visitors and the fair Ora was usually at his side. She was an efficient helper to her father and a gracious hostess to the guests.

The amazement of the visitors grew apace as the wonders of Europan science were revealed to them. They sat by the hour at the illuminated screen of the rulden, that remarkable astronomical instrument which brought the surfaces of distant celestial bodies within a few feet of their eyes, and the sounds of the streets and the jungles to their ears. It was no longer a mystery how the language of Cos had become so familiar to these people.

They learned of the origin of the races that inhabited Europa and Ganymede. Ages before, it was necessary for the peoples of the then thickly populated Jupiter to cast about for new homes due to the cooling of the surface of that planet. Life was becoming unbearable. In those days there were two dominant races on the mother body, a gentle and peaceful people of great scientific accomplishment and a race of savage brutes who, while very clever with their hands, were of lesser mental strength and of a quarrelsome and fighting disposition.

Toward the last the population of both main countries was reduced to but a few survivors, and the intelligent race had discovered a means of traversing space and was prepared to leave the planet for the more livable satellite – Europa. Learning of these plans, the others made a treaty of perpetual peace as a price for their passage to another satellite – Ganymede. The migration began and the two satellites were settled by the separate bands of pioneers and their new lives begun.

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The perpetual treaty had not been broken since, but the energies of the warlike descendants of those first settlers of Ganymede were expended in casting about for new fields to conquer. Through the ages they cast increasingly covetous eyes on those inner planets, Mars, Terra and Venus. Not having the advantage of the Rulden, they knew of these bodies only what could be seen through their own crude optical instruments and what they had learned by word of mouth from certain renegade Europans they were able to bribe.

While their neighbors of the smaller satellite were engaged in peaceful pursuits, tilling the soil and making excellent homes for themselves, the dwellers on Ganymede were fashioning instruments of warfare and building a fleet of space-ships to carry them to their intended victims. It was a religion with them; they could think of nothing else. An unscrupulous scientist of Europa sold himself to them several generations previously and it was this scientist who had made the plans for their space-fliers and had contrived the deadly weapons with which they were armed. He likewise taught them the language of Cos and it now was spoken universally throughout Ganymede in anticipation of the glorious days of conquest.

"You honestly believe them able to do this?" asked Carr, still skeptical after two days of discussion.

"I know it as a certainty," Detis replied solemnly. "It is only during the past generation we have learned of the completeness and awfulness of their preparations. Your people can not combat their sound-ray. With it they can remain outside the vision of those on the surface and set the tall buildings of your cities in harmonic vibrations that will bring them down in ruins about the ears of the populace."

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"There'll be nothing left for them to take if they destroy all our cities: nowhere for them to live. I don't get it."

"Only a few will be destroyed completely, to terrify the rest of the inhabitants of your worlds. Others will be depopulated by means of vibrations that will kill off the citizens without harming the cities themselves – vibrations which are capable of blanketing a large area and raising the body temperature of all living things therein to a point where death will ensue in a very few minutes. Other vibrations will paralyze all electrical equipment on the planet and make it impossible for your ships of the air to set out to give battle, even were they properly armed."

"Looks bad, Carr," said Mado glumly.

"It does that. We've got to go back and carry the warning."

"I fear it is too late," said Detis. "Much time will be needed in which to develop a defense and surely it can not be done within the three isini before they set forth – about four of your days."

"They leave that soon?" Carr was taken aback.

"Yes, with their one hundred and twenty vessels; forty to each of your three planets; seventeen hundred men to a vessel."

Carr jumped to his feet. "By the heat devils of Mercury!" he roared, "well go to their lousy little satellite and find a way to prevent it!"

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Ora gazed at his flushed face with unconcealed admiration.

"You're crazy!" exploded Mado. "What can we do with the Nomad?"

"Her D-ray can do plenty of damage."

"Yes, but they'd have us down before we could account for five of their vessels. It's no use, I tell you."

But Carr was stubborn. "We'll pay them a call anyway. I'll bet we can dope out some way of putting it over on them. Are you game?"

"Of course I'm game. I'll go anywhere you will. But it's a fool idea just the same."

"Maybe so. Maybe not. Anyway – let's go."

"Just a moment, gentlemen," Detis interposed. "How about me?"

Carr stared at him and saw that his eyes shone with excitement. "Why, I believe you'd like to go with us!" he exclaimed admiringly.

"I would, indeed."

"Come on then. We're off." He was impatient to be gone.

Detis busied himself with a small apparatus that folded into a compact case, explaining that it was one that might prove useful. Ora left the room but quickly returned. She too carried a small case, and she had donned a snug fitting leather garment that covered her from neck to knees.

"What's this?" demanded Carr. "Surely Miss Ora does not intend to come with us?"