It began to sense things—controlled combustion around it, vibrations of wind, mass movements.
There was another, greater explosion, a taste of real food! Greedily it ate, growing faster. It waited anxiously for more explosions, while its cells screamed for food.
But no more came. It continued to feed on the soil and on the Sun’s energy. Night came, noticeable for its lesser energy possibilities, and then more days and nights. Vibrating objects continued to move around it.
It ate and grew and flowed.
* * * *
Micheals stood on a little hill, watching the dissolution of his house. The leech was several hundred yards across now, lapping at his front porch.
Good-by, home, Micheals thought, remembering the ten summers he had spent there.
The porch collapsed into the body of the leech. Bit by bit, the house crumpled.
The leech looked like a field of lava now, a blasted spot on the green Earth.
“Pardon me, sir,” a soldier said, coming up behind him. “General O’Donnell would like to see you.”
“Right,” Micheals said, and took his last look at the house.
He followed the soldier through the barbed wire that had been set up in a half-mile circle around the leech. A company of soldiers was on guard around it, keeping back the reporters and the hundreds of curious people who had flocked to the scene. Micheals wondered why he was still allowed inside. Probably, he decided, because most of this was taking place on his land.
The soldier brought him to a tent. Micheals stooped and went in. General O’Donnell, still in suntans, was seated at a small desk. He motioned Micheals to a chair.
“I’ve been put in charge of getting rid of this leech,” he said to Micheals.
Micheals nodded, not commenting on the advisability of giving a soldier a scientist’s job.
“You’re a professor, aren’t you?”
“Yes. Anthropology.”
“Good. Smoke?” The general lighted Micheals’ cigarette. “I’d like you to stay around here in an advisory capacity. You were one of the first to see this leech. I’d appreciate your observations on—” he smiled—“the enemy.”
“I’d be glad to,” Micheals said. “However, I think this is more in the line of a physicist or a biochemist.”
“I don’t want this place cluttered with scientists,” General O’Donnell said, frowning at the tip of his cigarette. “Don’t get me wrong. I have the greatest appreciation for science. I am, if I do say so, a scientific soldier. I’m always interested in the latest weapons. You can’t fight any kind of a war any more without science.”
* * * *
O’Donnell’s sunburned face grew firm. “But I can’t have a team of longhairs poking around this thing for the next month, holding me up. My job is to destroy it, by any means in my power, and at once. I am going to do just that.”
“I don’t think you’ll find it that easy,” Micheals said.
“That’s what I want you for,” O’Donnell said. “Tell me why and I’ll figure out a way of doing it.”
“Well, as far as I can figure out, the leech is an organic mass-energy converter, and a frighteningly efficient one. I would guess that it has a double cycle. First, it converts mass into energy, then back into mass for its body. Second, energy is converted directly into the body mass. How this takes place, I do not know. The leech is not protoplasmic. It may not even be cellular—”
“So we need something big against it,” O’Donnell interrupted. “Well, that’s all right. I’ve got some big stuff here.”
“I don’t think you understand me,” Micheals said. “Perhaps I’m not phrasing this very well. The leech eats energy. It can consume the strength of any energy weapon you use against it.”
“What happens,” O’Donnell asked, “if it keeps on eating?”
“I have no idea what its growth-limits are,” Micheals said. “Its growth may be limited only by its food source.”
“You mean it could continue to grow probably forever?”
“It could possibly grow as long as it had something to feed on.”
“This is really a challenge,” O’Donnell said. “That leech can’t be totally impervious to force.”
“It seems to be. I suggest you get some physicists in here. Some biologists also. Have them figure out a way of nullifying it.”
The general put out his cigarette. “Professor, I cannot wait while scientists wrangle. There is an axiom of mine which I am going to tell you.” He paused impressively. “Nothing is impervious to force. Muster enough force and anything will give. Anything.
“Professor,” the general continued, in a friendlier tone, “you shouldn’t sell short the science you represent. We have, massed under North Hill, the greatest accumulation of energy and radioactive weapons ever assembled in one spot. Do you think your leech can stand the full force of them?”
“I suppose it’s possible to overload the thing,” Micheals said doubtfully. He realized now why the general wanted him around. He supplied the trappings of science, without the authority to override O’Donnell.
“Come with me,” General O’Donnell said cheerfully, getting up and holding back a flap of the tent. “We’re going to crack that leech in half.”
* * * *
After a long wait, rich food started to come again, piped into one side of it. First there was only a little, and then more and more. Radiations, vibrations, explosions, solids, liquids—an amazing variety of edibles. It accepted them all. But the food was coming too slowly for the starving cells, for new cells were constantly adding their demands to the rest.
The ever-hungry body screamed for more food, faster!
Now that it had reached a fairly efficient size, it was fully awake. It puzzled over the energy-impressions around it, locating the source of the new food massed in one spot.
Effortlessly it pushed itself into the air, flew a little way and dropped on the food. Its super-efficient cells eagerly gulped the rich radioactive substances. But it did not ignore the lesser potentials of metal and clumps of carbohydrates.
* * * *
“The damned fools,” General O’Donnell said. “Why did they have to panic? You’d think they’d never been trained.” He paced the ground outside his tent, now in a new location three miles back.
The leech had grown to two miles in diameter. Three farming communities had been evacuated.
Micheals, standing beside the general, was still stupefied by the memory. The leech had accepted the massed power of the weapons for a while, and then its entire bulk had lifted in the air. The Sun had been blotted out as it flew leisurely over North Hill, and dropped. There should have been time for evacuation, but the frightened soldiers had been blind with fear.
Sixty-seven men were lost in Operation Leech, and General O’Donnell asked permission to use atomic bombs. Washington sent a group of scientists to investigate the situation.
“Haven’t those experts decided yet?” O’Donnell asked, halting angrily in front of the tent. “They’ve been talking long enough.”
“It’s a hard decision,” Micheals said. Since he wasn’t an official member of the investigating team, he had given his information and left. “The physicists consider it a biological matter, and the biologists seem to think the chemists should have the answer. No one’s an expert on this, because it’s never happened before. We just don’t have the data.”
“It’s a military problem,” O’Donnell said harshly. “I’m not interested in what the thing is—I want to know what can destroy it. They’d better give me permission to use the bomb.”
Micheals had made his own calculations on that. It was impossible to say for sure, but taking a flying guess at the leech’s mass-energy absorption rate, figuring in its size and apparent capacity for growth, an atomic bomb might overload it—if used soon enough.
He estimated three days as the limit of usefulness. The leech was growing at a geometric rate. It could cover the United States in a few months.