PROFESSOR REITZE adjusted his rimless spectacles, surveyed the human-like creature which was chained to the wall of the small brightly-lit cell. No emotion showed on the Professor's features as he carefully checked the small syringe, plunged the long needle deep into the skin below the neck.

The victim mouthed a mute scream, tensed, but the manacles only allowed muscle movement, expansion and contraction. Reitze pressed the plunger, waited a second or two, then withdrew the needle, handed the instrument to the white-coated man at his side.

'We'll have to check him every hour.' He spoke flatly, a doctor perhaps concerned with a hospital patient's high blood pressure.

'Ugly devil, isn't he?' The second man could not disguise the revulsion he felt for the prisoner. 'The original missing link, if you ask me.'

'Maybe you're not far wrong.' Reitze stared into the throwback's eyes, saw how they rolled until the pupils virtually disappeared, egg-white without the yoke. The features were mongoloid, the body short and muscular. Water sprayed on to the tiled floor with force; the creature had emptied its bladder in its terror. 'It's like a kind of partial stroke, the brain stupefied but the body allowed full function. Just a change of skin texture, any surplus fat solidifying into muscle.'

'You reckon we can do anything?' Westcote's tone betrayed his own lack of confidence. He had spent five years at the animal research centre in Arizona. You took a cage of monkeys and injected them with drugs which, in theory, were supposed to give a certain reaction. They seldom did.

Most of the time you ended up with dead monkeys. The public protested so you were forced to keep your experiments under cover; you couldn't share success or failure with them.

*I don't know.' Reitze watched the eyes closely, saw the pupils click back down into focus. 'But it's worth a try. Anything's worth a try. In theory this should soften the arteries to the brain. These micro-organisms, and we still haven't been able to identify them, produce a kind of angina. Not fatal but slowing the blood supply to the brain. If we can open the arteries up, let the full flow of blood in, it should bring the brain almost back to normal. In theory! But of course we don't know what permanent damage has been done in the meantime.'

The victim's face was screwed up into a bestial expression of pain and fear, froth bubbling on the thick lips. Reitze wrinkled his nose. It was starting to shit itself, too. In future all specimens were to be given an enema before they were brought into the laboratories.

Westcote handed him another syringe and he moved on to where the female was pinioned. She was unsuccessfully trying to squirm; if she hadn't been given a tranquilliser a short time ago she would have been screaming. Screams were very distracting in such a confined space.

Reitze stood looking at her, almost gloating. By no means as hairy as her male counterpart there was less of a physical change in the female of the species, more a kind of coarseness as though she belonged to some hitherto undiscovered Amazon tribe. A predomination of the nipples, the vulva engorged like an animal on heat. Facially she was almost attractive, just a slight overall squatness of the features.

'It would be too much to experiment on both brain and body in the same specimen.' Reitze spoke expressionlessly, he might even have been talking to himself rather than to his companion. 'The female stands a better chance of body success. A skin softener and hair remover administered internally. It was tried in Mexico a few years ago and there was one fuck of a stink when a couple of women died. The drug was banned as a result. But I guess nobody's going to make too much of a shout if one or two of these died.'

This time he introduced the needle more gently, just a surface prick, watching her face the whole time. Teeth bit the lower lip, trickles of blood showed, dripped down on to the breasts. The eyes dilated, filled with tears. Why are you doing this to me?

You're the first of many. There'll be hundreds more, men, women and children, as fast as the security forces can bring them in. Most'11 die but we'll keep on until we get some kind of a result.

She was strangely placid now, beautifully moulded features serene, a hint of nobility in her bearing even when she was hanging from that stark wall. Proud. Reitze stiffened, seemed to sense it and it made him angry. You scum, we'll kill you if we can't cure you. He turned away abruptly.

They've been hit pretty hard back home,' Westcote said. 'Virtually the whole of New York State is wrecked, mobs on the rampage the whole time. They even had to defend the White House with heavy artillery.'

This "change" is like a rebirth,' Reitze told him. 'At first they're just stupefied, virtually an unthinking species relying on basic instinct. Then they start to get "acclimatised", for want of a better word, learn to use their limited brains. At first they ran and hid in the woods and fields, now they're saying to themselves, "Why the fuck shouldn't we have those fine houses to live in instead of stone dwellings?" We don't even know how far they'll develop. Anyway, we'd better go, I've got another meeting with the Defence Minister at three. Don't forget, check this pair every hour.'

Westcote nodded, locked the door behind them as they left. Reitze gave him the creeps, you got the impression that he enjoyed injecting living things, delighted in unforeseen complications. These two wouldn't make it, he was sure of that. He only wished he didn't have to come back and check them out because he didn't like the thought of what he might find.

'It's going fine,' Reitze told Rankine. 'We're now working on a series of experiments on brain and skin tissue. We'll know in about an hour how it's going.'

'Don't forget,' the Defence Minister twitched unusually heavy brows, 'these are our people. They're not animals, you know.'

• 'Sure.' They're worse than fucking animals. 'But we've got to test 'em. Don't forget, winter's on the way, another couple of months or so and an awful lot of 'em could well die from exposure. We don't have much time.'

'Which brings me to our Emergency Operations which are now being circulated to the security forces.' Rankine glanced down, a hint of embarrassment. It sounded callous but probably Reitze would not see it that way; the American was devoid of emotions, compassion. 'Our forces are instructed to drive all these . . . throwbacks out of the towns and cities, scatter them to the hills and woods and keep 'em there; a lot of 'em seem to be doing that of their own accord anyway. Keep the populated areas free, stop the looting and burning and . . . well, after that we're relying on you to come up with something.'

Reitze smiled faintly, maybe a sign that he did have an ego and it had been touched. 'Sounds OK in theory, but there's one point I was discussing with Westcote only a few minutes ago. Are these people equipped to stand the rigours of a winter out of doors?'

'Their ancestors did, and survived.' The Defence Minister felt a little flutter in his guts; damn these bloody Yankee boffins, it would mean . . .

'We'll have to carry out some extensive tests on them,' Reitze confirmed the other's worst fears. I'll make a start within the next few days. In the meantime, get your guys catching a few more of them. We'll need males, females and children, in good health and poor. That way we'll be able to hazard a rough guess at the survival rate.'

Rankine nodded and refrained from repeating himself: They are our people, you know.' Right now they were in the hands of the scientists.

Westcote glanced at his watch, saw it was time to go back downstairs. He shuffled his feet under the desk, wondered if there was any delaying tactic which would be acceptable to Reitze. He could not think of one, would have to go whether he liked it or not. 'What the fuck were you playing at, can't you even tell the time?' Scathing retribution that was ten times worse when issued in the Professor's monotone; no raving or shouting, he just spoke the truth and you knew he was right. Westcote would have to go and check the specimens.