“It is a freak of nature, of course, boys,” he explained on one occasion.

“How wonderful that it should have remained undiscovered for so long,” said Jack.

“Not so marvelous,” said his father. “Few, indeed, are the people who ever have penetrated any distance into all this vast wilderness of northern Canada. It was supposed, and still is generally supposed, to be bleak and uninhabitable. You know from experience that the contrary is the case. It is delightful country in Summer, and man is so constituted that, if properly clothed and housed, he can stand any severity of Winter. Some day, I predict, all this vast wilderness through which we have been making our way will be settled. That day is far off, of course, but it is coming. The growth of world population will force the conquest of the sub-Arctic.”

The one thing making their stay in this valley of marvels unpleasant was the constant rainfall. For in the Arctic storm succeeds storm, sweeping down from the North Pole in never-ending succession. And these storms which they knew were burying the land beyond the valley under a pall of ice and snow poured torrents of water on them. The peaks of the mountain ranges rimming the valley were buried under snow, gleaming wan in the occasional moonlight between the storms, for by now the long night had come. But on them no snow fell, for as Long Jim had foretold the snow as it passed through the temperate air created by the eternally hot rivers and springs was transformed into rain.

Two events of importance marked their stay. One was the escape of their prisoners, together with some rifles which they succeeded in stealing. Pursuit in the darkness, and through the jungle-like reaches of the forest was almost hopeless and was quickly abandoned. Nor, although vigilant watch was kept to prevent surprise, did they ever see sign of the half-breeds again.

“It’s a big valley,” said Mr. Hampton, “and I doubt whether they will attempt to attack us. Rather, they will keep out of our way. They are poorly armed and inferior in numbers, since we have all come together. Their escape, I imagine, was incited by a fear of what awaited them if we succeeded in getting them back to civilization and the courts. Well,” he said, with a sigh, “I regret, of course, the loss of witnesses to substantiate the charges of deviltry which I shall surely bring against Grimm. Nevertheless, I am glad to be rid of them.”

It was a sentiment in which all concurred.

The other event referred to was the opening by means of relayed messages via the Mounted Post and Edmonton of communication by radio with Mr. Temple in faraway New York. When word reached Bob’s father that the Hampton party was safe and sound and wintering in the wilderness, he quit work for the day, despite the fact that a big business deal was clamoring for his attention, and sped by motor down to his Long Island home.

Bob’s sister, Della, was sitting in the library, staring spiritlessly out at the Winter landscape. Mr. Temple stole up behind her and, reaching over her shoulder, thrust the message from the radio corporation under her eyes.

Della’s glance fell and she began to read the printed words. Then she leaped up, whirled around, her eyes like two stars, and threw her arms around her father’s neck.