"Well, I think I will go off to sleep; my pipe is out and the hot tea has made me sleepy." After sleeping for some hours, Godfrey awoke with a strange feeling of oppression. Outside he could hear the dogs whimpering. "Wake up, Luka," he said, "it is very close in here. I fancy the snow must have drifted very deep and covered us up completely. Let us get up and see about it." It was quite dark outside, except that the embers of the fire threw a dull red light on the snow. The shelter seemed but half its former dimensions. The snow had drifted in at its entrance and lay in a bank piled up to the roof. "Bring your spear, Luka, and mine, and shove them up between these poles. We must make a few holes up through the snow if we can to let a little air in." The spears were pushed up and then worked a little to and fro to try to enlarge the hole. They were eight feet long, but Godfrey did not feel at all sure that they penetrated through the cover of snow. However, when they had made a dozen of these holes there was a distinct change in the air. "They have gone nearly through, if not quite, and anyhow they are near enough to the surface for the air to find its way out. Now we had better set to work at once to dig a passage out. That is one advantage of this shelter, there is a place to throw the snow back into." Going down on their hands and knees they soon scraped the snow away until they reached the entrance to the shelter. Here the snow weighted by the pressure above was much denser and harder, and they could cut out blocks with their hatchets. "Now," Godfrey said, "we must make a tunnel sloping upwards. It must be as steep as it can so that we are able to climb up, making steps to give us foothold. I will begin, for we only just want it wide enough for one. I will hand the blocks down to you as I cut them, and you pile them regularly along the sides here. As we fill the shelter up you must drive the dogs back into the tent. We shall want every inch of room for the snow before we get out." For hours they worked steadily, taking it by turns to cut and to pile. The last four feet were much more difficult than the first, the snow, being lighter and less packed, falling in upon them as they dug. Once Luka was completely buried, and Godfrey had to haul him back by the legs. The atmosphere inside, however, improved as they got upwards, being able to penetrate between the particles of the light snow. It was six hours before they both struggled out, followed by the dogs in an impetuous rush. It took them another couple of hours to clear away and beat down the snow sufficiently to make an easy entrance to the shelter. A fire was lighted outside and a meal cooked, for the lamps were quite sufficient to keep the tent sufficiently warm, and they would have been well-nigh stifled with smoke had they attempted to light the fire in the shelter. The snow was still falling and drifting, and the sky showed no signs of change.