Page:South - the story of Shackleton's last expedition, 1914-1917.djvu/194

 of the berg in the sea-swell after the surrounding floes had left us? One must reckon, too, the chance of the berg splitting or even overturning during our stay. It is not possible to gauge the condition of a big mass of ice by surface appearance. The ice may have a fault, and when the wind, current, and swell set up strains and tensions, the line of weakness may reveal itself suddenly and disastrously. No, I do not like the idea of drifting on a berg. We must stay on our floe till conditions improve and then make another attempt to advance towards the land."

At 6.30 p.m. a particularly heavy shock went through our floe. The watchman and other members of the party made an immediate inspection and found a crack right under the James Caird and between the other two boats and the main camp. Within five minutes the boats were over the crack and close to the tents. The trouble was not caused by a blow from another floe. We could see that the piece of ice we occupied had slewed and now presented its long axis towards the oncoming swell. The floe, therefore, was pitching in the manner of a ship, and it had cracked across when the swell lifted the centre, leaving the two ends comparatively unsupported. We were now on a triangular raft of ice, the three sides measuring, roughly, 90, 100, and 120 yds. Night came down dull and overcast, and before midnight the wind had freshened from the west. We could see that the pack was opening under the influence of wind, wave, and current, and I felt that the time for launching the boats was near at hand. Indeed, it was obvious that even if the conditions were unfavourable for a start during the coming day, we could not safely stay on the floe many hours longer. The movement of the ice in the swell was increasing, and the floe might split right under our camp. We had made preparations for quick action if anything of the kind occurred. Our case would be desperate if the ice broke into small pieces not large enough to support our party and not loose enough to permit the use of the boats.

The following day was Sunday (April 9), but it proved no day of rest for us. Many of the important events of our Expedition occurred on Sundays, and this particular day was to see our forced