She had used up all her fingers, and the busy hands lay in her lap as she thought it all over. There was a shadow over her keen eyes, for she could not hide from herself that the chance was rather a poor one. Indeed, were it not for the two days and more of start there would not be much chance at all.

Two trappers, the hardiest, toughest men on the Continent, used to miles of travel at great speed, travelling light, and following after a big fortune in dollar bills to be had for the taking, were bound to overtake herself and David and the sled! They would not go half as fast, and they must rest--for David's sake. After all, he was only twelve, and no boy of twelve, however strong, can outlast a tough man in his prime.

It was the start she was counting on, and the fact that the men would make so sure of catching them that they might not put out full effort. These trappers would do the distance in four days, going fast--at least, they often did when in haste--while she and David would take eight days. It was not a cheering calculation, but--she was looking at chances, as has been said before. Possibly snow, and a lost trail. Lastly, the farther they two went the more likely would they be to hap on "folk." On the Moose River there were many locations. Life would be stirring. She might strike friends and human dwellings.

Certainly, then, she must carry the money.

CHAPTER IV

THE HOWL OF THE WOLF

Presently Nell stood up and stretched, yawning a little, for she was sleepy. She looked round on her work and knew that all was completed except--the one thing. By a sort of instinct she stood quite still listening. There was no sound, but the crackle of wood in the stove and the sighing of wind round the house. She was glad of that crackling, it had a friendly feeling.

Having satisfied herself that all was safe, and the big bolts shot home into the staples, she took down a pick that they often used for breaking the hard ground, and then dragged back the big black bearskin spread on the floor by the stove. Just as it was rolled up she started nervously--someone moving! She had forgotten Robin, who had followed David into the small room at the end, and now--perhaps hearing strange movements on her part--came back to see what was happening. He walked across in a dignified manner, sat down on his haunches at the edge of the nearest rug, and then, turning his head slowly, gazed at the door.

Poor Nell, rather burdened by the weight of these events, felt a glow of affection towards the wise dog. She had not remembered him oddly enough for quite a long while, except as a little horse for the sled. Now as she looked over at him she knew she had a partner of value. The job seemed much less formidable, and she fixed the sharp point of the pick between the floor boards with a much lighter heart. She knew exactly where the place was, her father had shown her the secret of the hiding-place, one piece fitting over another so neatly and the rough bark hiding joins. A person who did not know would have to get the whole line up on the chance of finding one loose one.

There was the money, tied up in packets and stowed in two bags made of soft deerskin. Nell took it out, and heartily wished there was less of it! It was not heavy, of course, because it was paper. Also, from time to time her father had changed a parcel of small bills for one larger one, so there was not nearly as much as might have been supposed to represent so many years' savings.