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Slaughter didn't understand. He tried to recollect what he had read, but nothing on that subject came to him.

"The limbic brain," the medical examiner repeated. "It's the part around which all the other sections of our brain developed. It's sometimes called reptilian, but I think of it as animal. It causes our survival instincts, our emotions and Aggressions. Infection there would help explain why that boy acted as he did. Put simply, he became an animal."

"But what about the coma he went into?"

"Just don't rush me. Wait until I get to that. It's my guess that this virus is transmitted through the bloodstream. That explains the quick communication through the body. You should know that when I looked at where the boy said he was cut by glass, I found some evidence that he'd been bitten. When the doctor at the hospital examined him, he had no reason to assume the boy was lying, and besides the wound was jagged as if from a broken bottle. But the boy was bitten, all right. There isn't any question. Not more than a day ago. The virus travels through the bloodstream. It's selective. Only certain cells appeal to it."

"The limbic brain."

The medical examiner nodded. "It produces the symptoms of rabies very quickly; passes through, let's say, a twelve-hour phase in humans, paralyzes, and produces a coma. Evidently when the brain shuts down, the virus becomes dormant. When the victim regains consciousness, the virus starts to work again. It's really quite efficient, feeding until it produces near death and then holding off until the victim can sustain it once again. Because it passes through the bloodstream, it would show up in the salivary glands, infect the spittle, and pass to another victim in a bite. But if you were cut already and you came in contact with its blood, you'd get it just the same."

The medical examiner pointed toward the scab on Slaughter's cheek, and Slaughter suddenly was worried, raising one hand to it, frowning.

"It's too late to worry, Slaughter. If you'd been infected, we'd have known about it yesterday. But next time don't be so damned cavalier."

"If what you say is true, there wasn't anything that you could do about it anyway."

"That's right. Our vaccine would be useless." The medical examiner reached up to touch his own face then, his lips scabbed and swollen. "I got lucky, too. I would have had it by now if this cut had been contaminated. As it is, I gave myself two antirabies shots. Absolutely useless. Christ, I don't know what we're going to do."

"You say you never saw a virus like this? You never even heard about it?" Slaughter asked.

The medical examiner shook his head.

"Well, I did," Owens told them.

They studied him.

"I read about it," Owens said. "Nineteen sixty-nine in Ethiopia. A herd of cattle came down with a special form of rabies, little frenzy, just paralysis. They all collapsed. The owner didn't know exactly what they had. He gave them up for dead, and then they all recovered."

"What?" The medical examiner looked astonished. "Nothing can survive it. That's impossible as far as I know."

"This herd did. The problem is they still retained the virus and in several days they manifested symptoms once again. They had to be destroyed.

"You're certain it was rabies?"



"Oh, yes, all the later tests confirmed it. And I read about another case in India two years ago, but this time it was water buffalo."

"But this thing isn't rabies. Any vaccine they developed wouldn't be of use here. Even if it would, there isn't any time to get it."

"What would cause a brand new kind of virus?" Slaughter asked.

"You tell me," the medical examiner responded. "You want to know the truth? I wonder why it doesn't happen all the time. Never mind a thing like legio

"What you said about these dogs up in the hills. Psychopathic animal behavior," Slaughter told him.

"Sure. Just two roads from the valley," Owens said. "The mountains are around us, so the virus has been localized. But why did no one ever recognize it until now?"

"Because, so far as I remember, no one ever tested for it," the medical examiner said. "Ranchers maybe shot a few dogs and then buried them, but did you ever have a look at one?"

Owens shook his head.

"Well, there you have it."

"But you told me Friday night that people have been bitten by them," Slaughter said. "They would have come in for the rabies treatment but, in spite of that, have developed symptoms."

"And they did come in for treatment, and there wasn't any problem. So the dog that bit them didn't have the virus, or the virus didn't mutate until later. That's no argument against the model."

"But the virus is so virulent that everything would have it by now," Slaughter insisted.

"I don't think so. The attacks we've seen were plainly murderous. I doubt too many animals or people would survive them. Plus, the victims must be weakened by the virus. When the winter comes, it likely kills them. That's a natural control. We haven't studied any long term consequences of the virus. Maybe there's a calming process. I don't know at this point."

"So why now would the virus show up suddenly in town?"

"You know why as well as I do. All it takes is just one dog to wander in. But I think there's another reason. Don't forget the winter was a hard one. It drives victims down from where their normal hunting routes are in the mountains. That's one version of a model anyhow. I might be wrong. At least, it's something. What we do know, in addition to our tests, is that the victims are nocturnal."

The medical examiner pointed toward the case that contained the jars of supposedly dead mice that Owens had brought from the veterinary clinic. Owens had discovered that the mice were peaceful if concealed in darkness, that their rage was manifested only when their eyes were aggravated by light.

"That's another symptom this virus has in common with the rabies virus," the medical examiner continued. "Intense sensitivity to light. That was why the dead boy snarled the way he did. The moon was shining through the upper windows of the mansion. And that helps explain why so much trouble has occurred at night. The victims hide and sleep in daylight. Then they come out after dark, but now the moon is almost full, and they're reacting to it."