"You! The one person here who should know just how vital radio really is. I don't believe it."

"You must, I'm afraid." The quiet controlled voice belonged to the man with the cut brow. "No one else was anywhere near it at the time."

"What happened to you?" I could see he was nursing a bruised and bleeding hand.

"I dived for it when I saw it toppling." He smiled wryly. "I should have saved myself the trouble. That damned thing's heavy."

"It's all that. Thanks for trying anyway. I'll fix your hand up later." I turned to the stewardess again, and not even that pale and exhausted face, the contrition in the eyes, could quieten my anger – and, to be honest, my fear. "I suppose it just came to pieces in your hand?"

"I've told you I'm sorry. I – I'was just kneeling beside Jimmy here – "

"Who?"

"Jimmy Waterman – the Second Officer. I – "

"Second Officer?" I interrupted. "That's the radio operator, I take it?"

"No, Jimmy is a pilot. We've three pilots -we don't carry a radio operator."

"You don't – " I broke off my surprised question, asked another instead. "Who's the man in the crew rest room? Navigator?"

"We don't carry a navigator either. Harry Williamson is – was -the Flight Engineer."

No wireless operator, no navigator. There had been changes indeed since I'd flown the Atlantic some years previously in a Stratocruiser. I gave it up, returned to my original question and nodded at the smashed RCA.

"Well, how did it happen?"

"I brushed the table as I rose and – well, it just fell." Her voice trailed off uncertainly.

"It just fell," I echoed incredulously. "One hundred and fifty pounds of transmitter and you flicked it off the table just like that?"

"I didn't knock it off. The legs collapsed."

"It's got no legs to collapse," I said shortly. "Hinges."

"Well, hinges, then."

I looked at Joss, who had been responsible for the erection of the table as well as the radio. "Is it possible?"

"No." His voice was flat, definite.

Again the silence in the cabin, the hush, the tension that grew from the merely uncomfortable to the all but unbearable. But I was beginning to see that there was nothing to be gained now by further questioning, much to be lost. The radio was wrecked. Finish.

I turned away without a word, hung up my caribou furs on nails on the walls, took off goggles and gloves and turned to the man with the cut brow.

"Let's have a look at your head and your hand – it's a pretty nasty gash on your forehead. Forget the radio for the moment, Joss – let's have coffee first, lots-of it." I turned to Jackstraw, who had just come down the steps from the hatch and was staring at the smashed radio. "I know, Jackstraw, I know. I'll explain later– not that I know anything about it. Bring seme empty cases for seats out of the food tunnel, will you. And a bottle of brandy. We all need it."

I'd just started to wash the cut forehead – a nasty gash, as I had said, but surprisingly little signs of bruising – when the big amiable young man who had helped us lower the second officer from the wrecked plane came to us. I looked across up at him, and saw that I could be wrong about the amiability: his face wasn't exactly hostile, but his eyes had the cool measuring look of one who knew from experience that he could cope with most of the situations, pleasant and unpleasant, that he was ever likely to come up against.

"Look," he began without preamble, "I don't know who you are or what your name is, but I'm sure we are all most grateful to you for what you have done for us. It's more than probable that we owe our lives to you. We acknowledge that. Also, we know you're a field scientist, and we realise that your equipment is of paramount importance to you. Agreed?"

"Agreed." I dabbed iodine fairly liberally on the injured man's head – he was tough, all right, he didn't even wince – and looked at the speaker. Not at all a man to ignore, I thought. Behind the strong intelligent face lay a hardness, a tenacity of purpose that hadn't been acquired along with the cultured relaxed voice at the Ivy League college I was pretty certain he had attended. "You'd something else to say?"

"Yes. We think – correction, I think – that you were unnecessarily rough on our air hostess. You can see the state the poor kid's in. OK, so your radio's bust, so you're hoppin' mad about it – but there's no need for all this song and dance." His voice was calm, conversational all the time. "Radios aren't irreplaceable. This one will be replaced, I promise you. You'll have a new one inside a week, ten days at the most."

"Kind," I said dryly. I finished tying the head bandage and straightened up. "The offer is appreciated, but there's one thing you haven't taken into account. You may be dead inside that ten days. You may all be dead in ten days."

"We may all – " He broke off and stared at me, his expression perceptibly hardening. "What are you talking about?"

"What I'm talking about is that without this radio you dismiss so lightly your chances – our chances – of survival aren't all that good. In fact, they're not good at all. I don't give a tuppenny damn about the radio, as such." I eyed him curiously, and a preposterous thought struck me: at least, it was preposterous for all of a couple of seconds, before the truth hit me. "Have you – have any of you any idea just where you are, right here, at the present moment?"

"Sure we have." The young man lifted his shoulders fractionally. "Just can't say how far to the nearest drugstore or pub – "

"I told them," the stewardess interrupted. "They were asking me, just before you came in. I thought Captain Johnson had overshot the landing field at Reykjavik in a snowstorm. This is Langjokull, isn't it?" She saw the expression on my face and went on hastily. "Or Hofsjokull? I mean, we were flying more or less north-east from Gander, and these are the only two snowfields or glaciers or whatever you call them in Iceland in that direction from – "

"Iceland?" I suppose there is a bit of the ham actor in all of us, and I really couldn't pass it up. "Did you say Iceland?"

She nodded, dumbly. Everybody was looking at her, and when she didn't answer they all transferred their gazes to me, as at the touch of a switch.

"Iceland," I repeated. "My dear -girl, at the present moment you're at an altitude of 8500 feet, right slam bang in the middle of the Greenland ice-cap."

The effect was all that anybody could ever have wished for. I doubt whether even Marie LeGarde had ever had a better reaction from an audience. "Stunned' is an inadequate word to describe their mental state immediately after this announcement: paralysis was nearer it, especially where the power of speech was concerned. And when the power of thought and speech did return, it expressed itself, as I might have expected, in the most violent disbelief. Everybody seemed to start talking at once, but it was the stewardess who took my attention, by coming forward and catching me by the lapels. I noticed the glitter of a diamond ring on her hand, and remember having some vague idea that this was against airline regulations.

"What kind of joke is this? It can't be, it can't be! Greenland – it just can't be." She saw by the expression on my face that I wasn't joking, and her grip tightened even more. I had just time to be conscious of two conflicting thoughts – that, wide with fear and dismay though they might be, she had the most extraordinarily beautiful brown eyes and, secondly, that the BOAC were slipping in their selection of stewardesses whose calmness in emergency was supposed to match the trimness of their appearance – then she rushed on wildly.

"How – how can it be? We were on a Gander-Reykjavik flight. Greenland – we don't go anywhere near it. And there's the automatic pilot, and radio beams and – and radio base checks every half-hour. Oh, it's impossible, it's impossible! Why do you tell us this?" She was shaking now, whether from nervous strain or cold I had no idea: the big young man with the Ivy League accent put an arm awkwardly round her shoulder, and I saw her wince. Something indeed seemed to be hurting her – but again it could wait.