On the third table lay a shape skeletonlike in appearance, so emaciated was it, so closely did the bones press into the dry, fever-yellowed skin. Of one leg, only the stump was left; this creature had been forced to hop or crawl his way through the isuan swamps. The head, too, was no more than a skull, with great sunken dark-rimmed eyes, discolored fangs and loose, leathery lips. There had been no hair on this death's head; it had long been bald, and now, washed, clean for the first time in months or even years, it was to hold the brain of Dr. Ralph Swanson, Earth's one-time leader in the science of psychology.

On the fourth table lay a giant's body—but a hollow giant, a giant made thin and pitiful by the ravages of his destroyer, isuan. A roistering, free-booting space-ship sailor, this man may once have been, but, from the drug, the mighty arms had been twisted and shrivelled, the strong legs wasted away. One ear had been torn from the skull in an old brawl, and what was left was naked and ugly to the eye. Behind that bitter, drug-coarsened face would be the new home of the brain of Sir Charles Esme Norman, wizard of mathematics and once a polished, charming Englishman.

On the fifth table lay a dwarf. Its ridiculous body was not over four and a half feet long, though the head was larger than that of a normal man. In the old dark ages on Earth this body would have served for the jester of a lord, the comic butt of a king; in more recent times as the prize of a circus side-show. The huge, weighty head with its ugly brooding mask of a face, the child's body below—this was for the brain of Professor Erich Geinst, the solitary German who had stood preeminent on Earth in astronomy.


hese creatures were the result of Hawk Carse's desperate search. They had composed, with one other, the band of isuanacs that had been rooting in the swamp at the end of the lake when the asteroid had first arrived. The Hawk had remembered them, and had quickly seen that they were the only answer to the problem. And so, with Ban Wilson, he had gone out for them, his mind steeled to the ghastly thought of the great scientists' brains in such bodies. In space-suits they had swept down on them. There had been no time for considerate measures: the four isuanacs had been abruptly knocked out by the impact of the great suits swooping against them, and carried back to the laboratory.

Eliot Leithgow had been shocked at the idea of a scientist's brain in the head of the robot-coolie; how much greater, then, was his horror when confronted by the need of using these appalling remnants of men! But he could not protest. What else was there? Ku Sui, under the V-27, had spoken the truth: the operations would be impossible without the aid of his four assistants. The brains even now were dying. The choice was: bodies of isuanacs or death for the brains. The scientist and the adventurer had chosen.

Circumstances had required their use. Ku Sui's attempt to kill the brains, thus inflicting a time limit: the presence of the band of isuanacs near the laboratory; each circumstance with a long train of other, minor ones behind it. Chance or Fate—whatever it is—whether predetermined or accidental—men must wonder at its working, and know awe from its patterns and results. Seldom, certainly, was there a pattern more strange than this now being worked out in the laboratory of Master Scientist Eliot Leithgow.

The bodies lay there, washed, shaved and swathed in customary loose operating garments: globules of etheloid dropped steadily down into the breathing cones, of hunchback, living skeleton, twisted giant, dwarf and robot-coolie. One by one the isuanacs dropped with the falling of the etheloid into unconsciousness—and that was their farewell to the brains, each one debauched either by isuan-drug or skill of genius, that they had known.

And movement began in the laboratory. White-clothed figures, masked and capped, used gleaming instruments in their gloved hands; and all the figures were mute—mute from their great concentration on the delicate work in progress—or mute from horror that would not die....