Summary

Various Astounding Stories of Super-Science September 1930

Then, taking a deep breath, as of a swimmer preparing to dive into icy water, Sarka gave a new command.
"Dissolve! Reform on the roof of the world in globes! Roll over the face of the Earth, destroy the fire-balls of Mars—and take prisoners, inside the globes, the attackers from Mars!"
Instantly the gleaming cubes vanished, and darkness as of a mighty pit possessed the crevasse of destruction. Then, at the lip of the great crevasse, the cubes swept into form—myriads of globes which gleamed with the cold blue brilliance of the Moon!
Source: Gutenberg

Various Astounding Stories of Super-Science September 1930

But I was interrupted by a startled shout from Stanley.
"Professor Martin," he cried, pointing to the tunnel mouth. "Look!"
Like twin snakes crawling up to sun themselves, two tentacles had appeared over the rock rim. They hooked over the edge; and leisurely, with grim surety of invulnerability, the barrel-like head of a Quabo balanced itself on the ledge and glared at us.
For a moment we stared, paralyzed, at the Thing. And, during that moment it squatted there, as undistressed as though the air were its natural element, its gills flapping slowly up and down supplying it with oxygen.
Source: Gutenberg

Various Astounding Stories of Super-Science September 1930

Your will still rules the cubes which piloted you from the Moon?"
"Yes," replied Sarka tersely, "but there are only a dozen of the cubes. What can they do against countless millions of them? Cubes which are Moon-cubes, brought to the Earth in the heart of that blue column, here reformed to create an army which is invincible, because it cannot be slain! It means that the Moon-people themselves, thousands of miles out of our reach, have but to sit in comfort and watch their cube-slaves destroy us! When they have laid waste the Earth, the Martians have but to finish the fight!"
Source: Gutenberg

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