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."