uneasily in his sleep, then back to Jackstraw.
‘Still hear it?’
‘Getting louder all the time, Dr Mason. Louder and closer.’
I wondered vaguely – vaguely and a trifle irritably, for this was our world, a tightly-knit, compact little world, and visitors weren’t welcome – what plane it could be. A met. plane from Thüle, possibly. Possibly, but unlikely: Thule was all of six hundred miles away, and our own weather reports went there three times a day. Or perhaps a Strategic Air Command bomber testing out the DEW-line – the Americans’ distant early warning radar system – or even some civilian proving flight on a new trans-polar route. Or maybe some base plane from down by Godthaab—
‘Dr Mason!’ Jackstraw’s voice was quick, urgent. ‘It’s in trouble, I think. It’s circling us-lower and closer all the time. A big plane, I’m sure: many motors.’
‘Damn!’ I said feelingly. I reached out for the silk gloves that always hung at night above my head, pulled them on, unzipped my sleeping-bag, swore under my breath as the freezing air struck at my shivering skin, and grabbed for my clothes. Half an hour only since I had put them off, but already they were stiff, awkward to handle and abominably cold – it was a rare day indeed when the temperature inside the cabin rose above freezing point. But I had them on – long underwear, woollen shirt, breeches, silk-lined woollen parka, two pairs of socks and my felt cabin shoes – in thirty seconds flat. In latitude 72.40 north, 8000 feet up on the Greenland ice-cap, self-preservation makes for a remarkable turn of speed. I crossed the cabin to where no more than a nose showed through a tiny gap in a sleeping-bag.
‘Wake up, Joss.’ I shook him until he reached out a hand and pushed the hood off his dark tousled head. ‘Wake up, boy. It looks as if we might need you.’
‘What – what’s the trouble?’ He rubbed the sleep from his eyes and stared up at the chronometer above his head. ‘Midnight! I’ve been asleep only half an hour.’
‘I know. Sorry. But get a move on.’ I recrossed the cabin, passed by the big RCA transmitter and stove, and halted in front of the instrument table. The register showed the wind ENE, velocity 15 knots – near enough 17 miles per hour, on a night like this, with the ice-crystals and drift lifting off the ice-cap, clogging and slowing up the anemometer cups, the true speed was probably half as much again. And the pen of the alcohol thermograph was running evenly along the red circle of 40 degrees below zero – 72 degrees of frost. I thought of the evil combination of these two factors of wind and cold and felt my skin crawl.
Already Jackstraw was silently climbing into his furs. I did the same – caribou trousers and parka with reindeer fur trimmed hood, all beautifully tailored by Jackstraw’s wife – sealskin boots, woollen mittens and reindeer gloves. I could hear the plane quite clearly now, and so too, I could see, did Joss. The deep even throb of its motors was plain even above the frantic rattling of the anemometer cups.
‘It’s – it’s an aeroplane!’ You could see that he was still trying to convince himself.
‘What did you think it was – one of your precious London double-deckers?’ I slipped snow-mask and goggles round my neck and picked up a torch from the shelf beside the stove: it was kept there to keep the dry batteries from freezing. ‘Been circling for the past two or three minutes. Jackstraw thinks it’s in trouble, and I agree.’
Joss listened.
‘Engines sound OK to me.’
‘And to me. But engine failure is only one of a dozen possible reasons.’
‘But why circle here?’
‘How the devil should I know? Probably because he can see our lights – the only lights, at a guess, in 50,000 square miles. And if he has to put down, which God forbid, he stands his only chance of survival if he puts down near some human habitation.’
‘Heaven help them,’ Joss said soberly. He added something else, but I didn’t wait to hear. I wanted to get up top as quickly as possible.
To leave our cabin, we had to use a trap-door, not an ordinary door. Our cabin, a prefabricated, sectioned structure that had been hauled up from the coast on tractor sleds during the month of July was deep-sunk in a great oblong hole that had been gouged out from the surface of the icecap, so that only the top few inches of its flat roof projected above ground level. The trap-door, hinged at both ends so that it could open either upwards or downwards, was reached by a short steep flight of steps.
I climbed the first two of these, took down the wooden mallet that hung there permanently by the wall and pounded round the already bruised and splintered edges of the trap to loosen the ice that held it locked fast. This was an almost invariable routine: whenever the trap had previously been opened for any length of time at all, the layer of warm air that always lay under the roof seeped slowly out, melting the surrounding snow – which promptly turned to ice when the trap was closed again.
Tonight the ice cracked easily. I got my shoulder under the trap, levered upwards against the accumulated drift of snow above, and scrambled out.
I was prepared for what awaited me up top-the gasping, panic-stricken feeling of suffocation as the warm air was sucked from my lungs by that deadly, numbing cold – but even so I wasn’t sufficiently prepared. The wind speed was far higher than I had feared. Bent double and coughing violently, breathing shallowly to avoid frosting my lungs, I turned my back to the wind, breathed into my reindeer gloves, slipped on my snow-mask and goggles and straightened. Jackstraw was already standing by my side.
The wind on the ice-cap never howled or shrieked. It moaned, instead, a low-pitched, unutterably eerie ululation: a requiem for the damned, if ever there was one, the agony of some soul lost in torment. That same moan had driven men mad before now: less than two months previously I had had to send our tractor mechanic, a completely broken youngster who had lost all contact with the last shadow of reality, back to our Uplavnik base. The wind had done that to him.
Tonight its desolate threnody boomed and faded, boomed and faded in the lower registers of sound with an intensity which I had seldom heard, while its fingers plucked at the tightly strung guy ropes of the radio antenna and instrument shelters to provide its own whistling obbligato of unearthly music. But I was in no mood then to listen to its music, and, indeed, that sepulchral wailing was not the dominant sound on the ice-cap that night.
The throbbing roar of big aero engines, surging and receding, as the wind gusted and fell away, like surf on some distant shore, was very close now. The sound lay to windward of us at that moment, and we turned to face it, but we were blind. Although the sky was overcast, there was no snow that night – at any time, heavy snowfalls, strangely enough, are all but unknown on the Greenland ice-cap – but the air was full of millions of driving, needle-pointed ice spicules that swept towards us out of the impenetrable darkness to the east, clogging up our goggles in a matter of seconds and stinging the narrow exposed area of my face between mask and goggles like a thousand infuriated hornets. A sharp, exquisite pain, a pain that vanished almost in the moment of arrival as the countless sub-zero spicules dug deep with their anæsthetising needles and drove out all sensation from the skin. But I knew this ominous absence of feeling all too well. Once again I turned my back to the wind, kneaded the deadened flesh with mittened hands till the blood came throbbing back, then pulled my snow-mask higher still.
The plane was flying in an anti-clockwise direction, following, it seemed, the path of an irregular oval, for the sound of its motors faded slightly as it curved round to north and west. But within thirty seconds it was approaching again, in a swelling thunder of sound, to the south-west – to the
