Agursky had turned away, leaving them to their argument. Khuv watched him go, staring hard after his departing, white-smocked figure. Was there something wrong with the peculiar little scientist? Or ... not wrong but different? Something... different about him?

'Aren't you interested how it's triggered?' Luchov asked, still glaring.

'Eh? Oh, yes, very interested. I'd also like to know if there's a failsafe for your failsafe!' Khuv's attention was back on the Projekt Direktor. 'This place houses some hundred and eighty scientists, technicians, soldiers at any given time of the day and night, and it contains many millions of roubles' worth of equipment. If there was an accident -'

'Oh, there'll be no accident,' Luchov shook his head. 'If it's ever used it will be a very deliberate act, I assure you. Let me tell you how it works.

'There's empty accommodation close to mine. That becomes the failsafe control centre, with access only to the officer on duty and round the clock access to myself. Oh, and yourself, too, I suppose, since you'll probably insist upon it. However, I shall expect you to make your name available for the duty roster, as mine will be.'

'Control centre?' said Khuv. 'And what will this control centre contain?'

'A closed circuit TV monitor panel with three screens. One will watch the Gate and the others the stairwell through the shaft and the exit from it into the Projekt proper. There will be evacuation alert klaxons, too, though I admit a man will have to be pretty nimble to get out once they start sounding. As for the failsafe mechanism: two buttons and a heavy electrical switch. Button one will sound the evacuation alert in the upper levels the very moment that the Duty Officer sees anything come through the Gate. Button two will only be used if the creature is of that sort, and if the electrical fence, flamethrowers and Katushevs don't stop it. The button will control subordinate machinery: the alarms will sound more urgently, and steel doors will close in the ventilator shafts. If and when the creature passes from the core area, through the magmass levels and into the complex itself... then the switch is thrown. This cannot be done accidentally, or until the two buttons have been pressed. The switch, of course, opens the stopcocks on the tanker.'

'Huh.r Khuv grunted. 'I note that your quarters - and the control centre - are not far removed from the loading bays and the main entrance.'

'Your own quarters are similarly situated, albeit on a different bearing,' Luchov pointed out. 'We would have equal chances. So would anyone in that area, including your KGB men and parapsychologists.'

Khuv grudgingly conceded that. 'And you think it's a wise move to tell everyone just exactly how this failsafe operates? You don't think it will scare them witless?'

'I think it probably will,' Luchov answered, 'but I see no alternative. In the event of ... a disaster, as many as possible should have the chance to live. And where the military is concerned: well, they are the only ones who can't run when the alarms start sounding. The Katushev crews and the flame-thrower squads. And here I'm afraid I begin to sound too much like you for my own liking -but at least they now have the ultimate incentive to stop any emergence from the sphere!'

Khuv pursed his lips, made no reply.

'And now that I have satisfied your curiosity,' Luchov continued, 'perhaps you'd be so good as to tell me how your - experiments? - are proceeding? Have you had any message from those poor bastards you hurled through the Gate? Or have you simply written them off? And what about your investigations into this intruder affair? Do you know how he got in? What have you discovered about him?'

Khuv scowled, turned on his heel and strode away. Over his shoulder he called back: 'At this moment in time I have no information for you, Direktor. But when I have all the answers, and when they make sense, then rest assured that you will be among the first to know of it.' He paused in his striding and looked back. 'But you are not the only one who has been busy, Comrade, and I have made certain recommendations of my own. So far you have only considered an invasion from the other side, but my imagination is more wide-ranging. In a few days you will more fully comprehend my meaning, with the arrival of a platoon of crack assault troops - under my command!'

Before Luchov could enquire further, Khuv had passed through a bulkhead door and so out of sight...

In his private quarters, Vasily Agursky stared at himself in a mirror on his toilet wall. He stared, and had difficulty believing what he saw. As yet no one else appeared to have noticed, but then no one took a great deal of interest in him. But Agursky knew himself very well indeed, and he also knew that what he saw in the mirror was more than the sum total of his parts. Of his parts.

His first reaction, when he'd noticed the early changes, had been to distrust the mirror, a distrust which had quickly turned to a strong dislike. Ridiculous for a man to dislike a mirror, but it was true, he did. He disliked all mirrors, probably because they reminded him of certain undeniable alterations, which he'd be only too happy to forget about.

The changes were... weird! He wouldn't have believed them possible.

He had positioned this mirror on the wall himself, so that his face would be exactly centered in the glass. But now he had to bend his knees a little to get the same effect. He had gained two or more full inches in height. That fact should have delighted him, who had always considered himself as being little more than a dwarf, but instead it terrified him. For he could actually feel the ability of his body to be tall! And if the vampiric growth continued - then someone would notice.

His hair, too, was undergoing something of a metamorphosis. Its dirty-grey down was darkening, showing signs of a long-delayed virility, and the halo was contracting toward the centre of his head's dome, filling itself in. No one had noticed that, either, but he supposed they must when finally the growth was complete. Why, already he looked - and felt - years younger. Felt ready now for ... almost anything. And yet for a little while longer he must continue to play the part of the old Vasily. The old, despised, neglected and contemptuously treated Vasily...

Still gazing at himself, Agursky was surprised to feel a growl rising unbidden in his throat. It came up soft, purring from his chest, then thickened to a snarl. His lips curled back from his teeth - from his strong, white, animal teeth, whose canines had grown so as to interlock with each other more surely than they ever had in all his previous life - and he snarled like a beast! But he cut it off right there, took a grip on himself. For a moment there'd been a power in him like none he'd ever known before; and knowing where it came from, he knew too that he must control it. As long as he could.

For at the Perchorsk Projekt, they had this habit of burning things like Vasily Agursky.

Finally he took off his thick-lensed spectacles. The old curved lenses were gone now, removed from their frames and disposed of. In their place, flat discs of common glass which he'd cut in the workshop: 'eyepieces for my instruments,' as he'd explained it. No need now for aids to eyesight which had improved to an entirely incredible degree. Why, he could even see in the dark!

But in connection with his eyes, there was something else which might soon begin to show, though what he could do about that was quite beyond him to imagine. Contact lenses? By the time he could order and receive them it might well be too late. In a way that frightened him, too, but in another way ... it was fascinating.

Slowly he reached out a hand to the cord of the light-switch, gave it a single sharp tug. Click! - and the light went out.