
"If I had a sound system in mind -- I'm carefully refraining from developing one -- they'd read it, weigh it, and wouldn't
agree at all. They still have hopes. You see that pepper and alcohol system won't work perfectly because they can read
in my mind the proper reaction, and be drunk, or have an inflamed tongue at will, being perfect actors. I'm going to try
just the same. Rod, if you ever trusted me, trust me now."
"All right, come on. We'll go to the ship, and any one of these things that doesn't part with its gun is not me. Ray it."
Blake rose jerkily, all ten of him, and went down to the ship.
The Pentons followed faithfully after. Abruptly Penton rayed one Blake. His shoulder blades had humped curiously
and swiftly. Wings were developing. "That helps," said Penton, holstering his guns.
The Blakes went on, white-faced. They put the weapons in the racks in the lock stoically. The Martians had seen the,
to them, inconceivably swift movements of Penton's gun hands, and Penton knew that he, himself, had done the
raying that time. But he still didn't know a way to prove it without causing a general mêlée which would bring about
their own deaths. That wasn't so important. The trouble was that given fifty years, the rest of the world would descend
on this planet unwarned. Then all Earth would be destroyed. Not with flame and sword and horrible casualty lists, but
silently and undetectably.
The Blakes came out, unarmed. They shuffled and moved about uneasily, tensely, under the watchful eyes of eleven
Pentons armed with terrifically deadly weapons.
Several Pentons went into the ship, to come out bearing pepper, saccharine tablets, alcohol, the medicine chest. One of
them gathered them together and looked them over. "We'll try pepper," he said, rather unhappily. "Line up!"
The Blakes lined up, hesitantly. "I'm putting my life in your hands, Ted," said two of them in identical, plaintive tones.
Four Pentons laughed shortly. "I know it. Line up. Come and get it."
"First," he sighed, after a moment, "stick out the tongue, patient."
With unsteady hands he put a bit of pepper from the shaker on the fellow's tongue. The tongue snapped in instantly,
the Blake clapped his hands to his mouth, gurgling unpleasantly. "Waaaar!" he gasped. "Waar -- achooo -- damnt!"
With hands like flashing light, Penton pulled his own, and a neighbor's ion-gun. In a fiftieth of a second all but the
single gagging, choking, coughing Blake were stinking, smoking, swiftly dissolving and flowing rubbish. The other
Penton methodically helped destroy them.
Blake stopped gagging in surprise.
"My God, it might not have been the right one!" he gasped.
The ten Pentons sighed softly. "That finally proves it. Thank God. Definitely. That leaves me to find. And it won't
work again, because while you can't read my mind to find the trick that told, these brothers of mine have. The very fact
that you don't know how I knew, proves that I was right."
Blake stared at him dumbly. "I was the first one -- " he managed between a cough and a sneeze.
"Exactly. Go on inside. Do something intelligent. Use your head. See what you can think of to locate me. You have to
use your head in some such way that they don't mind-read it first, though. Go ahead."
Blake went, slow-footed. The first thing he did was to close the lockdoor, so that he was safely alone in the ship. Blake
went into the control room, donned an air-suit complete with helmet, and pushed a control handle over. Then a
second. Presently he heard curious bumpings and thumpings, and strange floppings and whimperings. He went back
rapidly, and rayed a supply chest and two crates of Venusian specimens that had sprouted legs and were rapidly
growing arms to grasp ray pistols. The air in the ship began to look thick and greenish; it was colder.
Contentedly Blake watched, and opened all the room doors. Another slithering, thumping noise attracted him, and with
careful violet-gun work he removed an unnoticed, extra pipe that was crawling from the crossbrace hangers. It broke
up into lengths that rolled about unpleasantly. Rod rayed them till the smallest only, the size of golf balls with curious
blue-veined legs, staggered about uncertainly. Finally even they stopped wriggling.
Half an hour Rod waited, while the air grew very green and thick. Finally, to make sure, he started some other
apparatus, and watched the thermometer go down, down till moisture grew on the walls and became frost, and no more
changes took place. Then he went around with an opened ion-gun with a needle beam and poked everything visible
with it.
The suction fans cleared out the chlorine-fouled atmosphere in two minutes, and Blake sat down wearily. He flipped
over the microphone switch and spoke into the little disc. "I've got my hand on the main ion-gun control. Penton, I
love you like a brother, but I love Earth more. If you can induce your boy friends to drop their guns in a neat pile and
retire -- O.K. If not, and I mean if not within thirty seconds, this ion-gun is going into action and there won't be any
more Pentons. Now, drop!"
Grinning broadly, with evident satisfaction, ten Pentons deposited twenty heart-cores of ultra-essence of destruction,
and moved off. "Way off," said Blake grimly. They moved.
Blake collected twenty guns. Then he went back into the ship. There was a fine laboratory at one end, and with grim
satisfaction, he took down three cotton-stoppered tubes, being very careful to handle them with rubber gloves. "You
never did man a good turn before, tetanus, but I hope you spread high, wide and handsome here -- "
He dumped them into a beaker of water, and took beaker and glass down to the lock and out. The ten waited at a
distance.
"All right, Penton. I happen to know you took a shot of tetanus antivaccine some while ago, and are immune. Let's see
if those blasted brain stealers can steal the secret of something we know how to make, but don't know anything about.
They can gain safety by turning into a chicken, which is immune, but not as human creatures. That's a concentrated
dose of tetanus. Go drink it. We can wait ten days if we have to."
Ten Pentons marched boldly up to the beaker, resting beside the ship. One stepped forward to the glass -- and nine