Islands of Space

by Jr. John W. Campbell

It was common knowledge on Sator that their commander would soon lead them across space to conquer Nansal and settle on a world of clear air and cloudless skies, where they could see the stars of space at night. They were waiting only until they could build up a larger fleet and learned all they could from the Nansalians.

They attacked three years after the three Nansalian spies returned with their information.

During those three years, Nansal had secretly succeeded in building up a fleet of the magnetic ships, but it went down quickly before the vastly greater fleet of the Satorians. Their magnetic rays were deadly, killing everyone they struck. They could lift the iron-boned Nansalians high into the air, then drop them hundreds of feet to their death.

The buildings, with their steel and iron frames, went down, crushing hundreds of others. They practically depopulated the whole planet.

But the warnings of the three spies had been in time. They had enlarged some of the great natural caverns and dug others out of solid rock. Here they had built laboratories, factories, and dwelling places far underground, where the Satorians could never find them.

Enough men reached the caverns before the disaster struck to carry on. They had been chosen from the strongest, healthiest, and most intelligent that Nansal had. They lived there for over a century, while the planet was overrun by the conquerors and the cities were rebuilt by the Satorians.

During this century, the magnetic ray shield was developed by the hidden Nansalians. Daring at last to face their conquerors, they built a city on the surface and protected it with the magnetic force screen.

By the time the Satorians found the city, it was too late. A battle fleet was mobilized and rushed to the spot, but the city was impregnable. The great domed power stations were already in operation, and they were made of nonmagnetic materials, so they could not be pulled from the ground. The magnetic beams were neutralized by the shield, and no ship could pass through it without killing every man aboard.

That first city was a giant munitions plant. The Nansalians built factories there and laughed while the armies of Sator raged impotently at the magnetic barrier. They tried sending missiles through, but the induction heating in every metal part of the bombs either caused them to explode instantly or to drop harmlessly and burn.

In the meantime, the men of Nansal were building their fleet. The Satorians stepped up production, too, but the Nansalians had developed a method of projecting the magnetic screen. Any approaching Satorian ship had its magnetic support cut from under it, and it crashed to the ground.