For a dugout it was capacious, and, unlike the usual dugout, it possessed three inner rooms backing into the hill against which it was built. One of these was a storeroom for dynamite and other camp equipment, one was a bedroom, and the other was an armory. The necessity for the latter might be questioned, but Bob Mason, the camp "boss," the sole authority over a great number of lumber-jacks, more than a hundred and fifty miles from the faintest semblance of civilization, was content that it should be there.

The three faces were serious enough as they gazed down in silence at the glowing, red-hot patch in the iron roof of the stove, and watched it spread, wider and wider, under the forced draught of the open damper. They had been silent for some moments, and before that one of them had practically monopolized the talk. It was Betty who had done most of the talking. Bronzed with the mountain air and sun, her cheeks flushed with interest and excitement, her sweet brown eyes aglow, she had finished recounting to her uncle and Bob Mason a significant incident that had occurred to her that afternoon on her way from the sick camp to the dugout.

Walking through a patch of forest which cut the sick quarters off from the main, No. 1, camp, she had encountered two lumber-jacks, whom she had no recollection of having seen before.

"They weren't like lumber-jacks," she explained, "except for their clothes. You can't mistake a lumber-jack's manner and speech, particularly when he is talking to a girl. He's so self-conscious and—and shy. Well, these men were neither. Their speech was the same as ours might be, and their faces, well, they were good-looking fellows, and might never have been out of a city. I never saw anybody look so out of place, as they did, in their clothes. There was no beating about the bush with them. They simply greeted me politely, asked me if I was Miss Somers, and, when I told them I was, calmly warned me to leave the hills without delay—not later than to-morrow night. I asked them for an explanation, but they only laughed, not rudely, and repeated their warning, adding that you, uncle, had better go too, or they would not be answerable for the consequences. I reminded them of the sick folk, but they only laughed at that too. One of them cynically reminded me they were all 'jacks' and were of no sort of consequence whatever, in fact, if a few of them happened to die off no one would care. He made me angry, and I told them we should certainly care. He promptly retorted, very sharply, that they had not come there to hold any sort of debate on the matter, but to give me warning. He said that his reason in doing so was simply that I was a girl, and that you, uncle, were a much-respected parson, and they had no desire that any harm should come to either of us. That was all. After that they turned away and went off into the forest, taking an opposite direction to the camp."

Mason was the first to break the silence that followed the girl's story.

"It's serious," he said, speaking with his chin in his hands and his elbows resting on his parted knees.

"The warning?" inquired Chepstow, with a quick glance at the other's thoughtful face.

Mason nodded.

"I've been watching this thing for weeks past," he said, "and the worst of it is I can't make up my mind as to the meaning of it. There's something afoot, but—— Do you know I've sent six letters down the river to Dave, and none of them have been answered? My monthly budget of orders is a week overdue. That's not like Dave. How long have you been up here? Seven weeks, ain't it? I've only had three letters from Dave in that time."

The foreman flung himself back in his chair with a look of perplexity on his broad, open face.