For all that, it was a nuisance to get up and look for dead branches in the dark, and he waited, reluctant to throw off his blanket, for some minutes, and then roused himself with a jerk.  He imagined he heard voices out on the lake.  He glanced at Father Lucien, but the latter was fast asleep.  Thirlwell wondered whether he himself had gone to sleep again and dreamed, but half-consciously fixed his eyes on the opening that commanded a view of the lake.  He could see it indistinctly; a smooth white plain running back into the dark.  The snow caught a faint reflection although the moon was hidden, but nothing broke the even surface.

Then Thirlwell got up abruptly, for he heard a shout.  It sounded as if somebody had given an order, and he felt disturbed.  There was, he knew, no ground for this.  The few white trappers and prospectors who now and then entered the wilds were, for the most part, good-humored, sociable men; the Metis and Indians were friendly.  Indeed, the proper line was for him to invite the strangers to share his camp, but he hesitated.  He had got suspicious since he promised to help in the search for Strange’s silver, and trappers and Indians did not travel at night.

As he pondered the matter, a dark object came out of the misty background on the lake.  It was indistinct, but by its height and slow movements he knew it was a man.  It vanished presently where the pines cut off his view, but three others followed after an interval, two apparently hauling a loaded sledge.  They crossed the stretch of ice that Thirlwell could see, and when the trees shut them out he forgot to gather wood and lighted his pipe.

The hazy figures had an unsubstantial, ghostly look; he might have imagined he had not really seen them had he not heard the leader’s shout.  Then it was hard to see why they were traveling in the dark, since they must leave the ice soon and the trail was rough.  He thought their leader knew the country, because their coming down the lake indicated that they had taken a short but difficult line from the settlements.  But one would expect a man who knew the country to make for and stop at the mine, which was not far off.  Thirlwell hoped to reach it next day, and wondered whether the others meant to pass it at night.  If so, it would indicate that they did not want to be seen.

When he had smoked out his pipe he gathered some wood, and then, as Father Lucien had not wakened, thought he would look for the others’ trail and see which way they had gone.  They were traveling north, but two routes the Indians used started from the head of the lake.  He found the marks of the sledge-runners, and then noted with a thrill of excitement that there was something curious about one of the men’s tracks.  The steps were uneven; one impression was sharper than the other.