Who's right, who's wrong, 'twill be all one to us;

suggestions. Both came from Nick Corazzini. "Look, Doc, about this diet Mr Mahler must have. Maybe we can't balance it, but we can at least make sure that he gets a fair number of caloriesnot that I know how you count the damn' things. Why don't we double his rationsno, even that wouldn't keep a decent sparrow alive. What say each of the rest of us docks a quarter of his rations and hands them over? That way Mr Mahler would have about four times his normal" "No, no!" Mahler protested. "Thank you, Mr Corazzini, but I cannot permit" "An excellent idea," I interrupted. "I was thinking along the same lines myself." "Good," Corazzini grinned. "Carried unanimously. I also suggest we'd get along farther and faster if, say, Mr Zagero and I were to spell you two on the tractor." He held up a hand as if to forestall protest. "Either of us may be the man you want, in fact, we might be the two men you wantif it is two men. But if I'm one of the killers, and I know nothing about the Arctic, navigation, the maintenance of this damned Citroen and wouldn't as much as recognise a crevasse if I fell down one, it's as plain as the nose on your face that I'm not going to make a break for it until I'm within shouting distance of the coast. Agreed?" "Agreed," I said. Even as I spoke, there came a coughing clattering roar as Jackstraw coaxed the still-warm Citroen back into life, and I looked up at Corazzini. "All right," I went on. "Come on down. You can have your first driving lesson now." We left at half-past seven that morning, in driving conditions that were just about perfect. Not the slightest breath of air stirred. across the ice-cap and the deep blue-black vault of the sky was unmarred by even the tiniest wisp of cloud. The stars were strangely remote, pale and shimmering and unreal through the gossamer gauze of the glittering ice needles that filled the sky and sifted soundlessly down on the frozen snow, but even so visibility was all that could have been desired: the powerful headlights of the Citroen, striking a million sparkling diamond points of light off the ice spicules, reached a clear three hundred yards ahead into the darkness, leaving the ground to either side of the twin interlocking beams shrouded in impenetrable darkness. The cold was intense, and deepening by the hour: but the Citroen seemed to thrive on it that morning. Luck was with us almost right away. Within fifteen minutes of starting off, Balto, ranging free as always, appeared out of the darkness to the south-west and ran comparing shutter speeds in digital cameras alongside the dog-sledge, barking to attract Jackstraw's attention. Jackstraw gave us the signal to stopa rapid flickering of the red and green lights on the tractor dashboardand in two or three minutes appeared out of the darkness, grinning, to tell us that Balto had picked up a standing trail flag. That was good news in itself, in that it meant that our navigation the previous night had been all that could have been wished for and that we were almost exactly on course: even more important, however, was the fact that if this flag was the first of a series we could dispense with the navigator on the dog-sledge and that Jackstraw and I could have some sleepif sleep were possible in that miserably cold and lurching tractor body. And, indeed, that flag proved to the first of an almost unbroken series that was to guide us all the length of that interminable day, so that from eight o'clock onwards Jackstraw, Zagero, Corazzini and I took it in turns to drive, with the Senator, the Reverend Smallwood or Solly Levin up front as lookout. Theirs was probably the coldest, certainly the most unwelcome job of all: but all three bore up uncomplainingly, even to the extent of thawing out in silent agony at the end of their hour on duty. Shortly after eight o'clock I left an obviously competent Corazzini to his own devices, dropped back to the shelter of the tractor body and asked the Senator to go up front. I then set about breaking the strictest rule of all, where these old tractors were concernedthat no fire should ever be lit inside when they were in motion. But even the most stringent rules are to be observed only until such time as the need for breaking them is paramount: and now both the need and the time were here. My concern was not for the warmth and comfort of the passengers, or even for the cooking of the foodwe had little enough of that, heaven knew, though a constant supply of warm water would come in useful for dealing with the inevitable cases of frostbitebut purely and simply for the life of Theodore Mahler. Even following Corazzini's suggestion we couldn't give him enough food, and what we could didn't, and wouldn't, even begin to resemble a balanced diet. His best chance of survival, and that was slender enough, lay in conserving his body reserves and his energy as far as lay within our power. To achieve that, work, or exercise of even the lightest kind, was out: he had to remain as immobile as possible,