Then had come the greater prosperity. It was the time of a prosperity upon which the simple-minded fur-hunter had never counted. The Fort became a store for trade. It was no longer a mere headquarters where furs were made ready for the market. Trade developed. Real trade. And Allan was forced to change his methods. The work was no longer possible single-handed. The claims of the trail suddenly increased, and both husband and wife saw that their prospects had entirely outgrown their calculations.

Forthwith long council was taken between them. Either the trail, with its possibilities, which had suddenly become an enormous factor in their lives, or the store at the Fort, which was almost equally important, must be abandoned, or a partner must be found and taken. Allan Mowbray was not the man to yield a detail of the harvest he had so laboriously striven for. So decision fell upon the latter course.

Murray McTavish was not twenty-five when he arrived at the Fort. He was a man of definite personality and was consumed with an abundance of determination and resource. His inclination to stoutness was even then pronounced. But above all stood out his profound, concentrated understanding of American commercial methods, and the definite, almost fixed smile of his deeply shining eyes.

There was never a doubt of the wisdom of Allan's choice from the moment of his arrival. Murray plunged himself unreservedly into the work of the enterprise, searching its possibilities with a keenly businesslike eye, and he saw that they had been by no means overestimated by his partner. There was no delay. With methods of smiling "hustle" he took charge of the work at the Fort, and promptly released the overburdened Allan for the important work of the trail.

Nor was Ailsa Mowbray the least affected by the new partner's coming. It was early made clear that her years of labor were at last to yield her that leisure she craved for the upbringing of her little family, which was, even now, receiving education under the cultured guidance of the little French-Canadian priest who had set up his Mission in this wide wilderness. For the first time in all her married life she found herself free to indulge in the delights of a domesticity her woman's heart desired.

It was about the end of the summer, after Murray's coming to the Fort, that an element of trouble began to disquiet the peace of the Mission on Snake River. It almost seemed as if the change from the old conditions had broken the spell of the years of calm which had prevailed. Yet the trouble was remote enough. Furthermore it seemed natural enough.

First came rumor. It traveled the vast, silent places in that mysterious fashion which never seems clearly accounted for. Well over a hundred and fifty miles of mountain, and valley, and trackless woodlands separated the Fort from the great Mackenzie River, yet, on the wings of the wind, it seemed, was borne a story of war, of massacre, of savage destruction. The hitherto peaceful fishing Indians of Bell River had suddenly become the hooligans of the north. They were carrying fire and slaughter to all lesser Indian settlements within a radius of a hundred miles of their own sombre valley.

The Fort was disturbed. The whole Mission struck a note of panic. Father José saw grave danger for his small flock of Indian converts. He remembered the white woman and her children, too. He was seriously alarmed. Allan was away, so he sought the advice of those remaining. Murray was untried in the conditions of the life of the country, but Ailsa Mowbray possessed all the little man's confidence.

In the end, however, it was Murray who decided. He took upon himself the position of leader in his partner's absence, and claimed the right to probe the trouble to its depths. The priest and Ailsa yielded reluctantly. They, at least, understood the risk of his inexperience. But Murray forcefully rejected any denial, and, with characteristic energy, and no little skill, he gathered an outfit together and promptly set out for Bell River.

It was the one effort needed to assure him of his permanent place in the life of the Fort on Snake River. It left him no longer an untried recruit, but a soldier in the battle of the wilderness.