This succeeded admirably. It was six feet long. They had cleared away the loose snow to a depth of eighteen inches, and both holding it were able to force the pole down as much more; then they hammered it with a billet of wood until only a foot showed; then they spliced another to it, and working it up and down jumped it in until they could again use the mallet, and at last struck on something solid, which could only be one of the beams forming the roof of the hut. Godfrey went below, and soon discovered the spot where the pole came down, and with his knife managed to clear away the snow round it. Then he went up and assisted Luka to withdraw the pole, which left a hole of about three inches in diameter.
"That is a capital chimney," he said. "Now we will throw a few fir branches over it, to prevent the dogs treading here and shutting it up. I think the air looks rather lighter, Luka, and that the storm is nearly over. There is a howl again. I am afraid that we are going to have trouble with the wolves. Is there anything we can do?"
Luka shook his head. "We might get up into trees," he said. "We should be safe there, but then we should lose the dogs."
"That would never do, Luka; we should have to haul the sledge back a hundred and fifty miles. No, I'll tell you what we will do: we will cut down some young trees and block up our tunnel with beams, leaving three or four inches between each to fire through or use our spears."
"That is a very good plan," Luka said. "We should be quite safe then."
It took them some hours' work to carry out the idea. The middle of the tunnel was closed by a row of pointed stakes, some four inches in diameter, driven deep into the snow and reaching up to the roof of the shelter. An opening of a foot wide was left in the middle, another stake being placed beside it in readiness to fill it up if required. The operation was completed by the light of the fire, as it was pitch dark by the time it was done. Then another meal was cooked and eaten, and the brands carried below, where, at the bottom of the descent, the fire was now kindled. The dogs had for some time been growling angrily in the upper passage, and the fire was no sooner alight below than they broke into a chorus of fierce barking.
"We had better bring them down here, Luka, and fill up the opening. I think the wolves must be gathering in numbers."
Going up again they sent the dogs down, firmly lashed two cross-bars to the others, and to these lashed the pole they had left in readiness, thus completing the grating across the tunnel. As they worked the smoke from the fire below curled up round them. A few months before Godfrey would have found it almost insupportable, but by this time he had, like the natives, become so accustomed to it that it affected him very little. Still he said to Luka: "You had better break off the hot ends of the sticks so as to have a red fire only for the present, the smoke makes my eyes water so that I can scarcely see. Now the sooner those fellows come to get their first lesson the better."
Kneeling by the grating, with his gun in his hand and his spear beside him, Godfrey gazed out, and could presently distinguish the outline of a number of moving figures.
"I can see their eyes at the entrance," he said. "Shall I give them a shot, or will you send an arrow into them?"