More than once in those long winter nights their talk was chopped off short by the song of the pack on some distant ridge. Sometime, when the world is old, possibly a man will be born that can continue to talk and keep his mind on his words while the wolf pack sings. But he is certainly an unknown quantity to-day. The cry sets in vibration curious memory chords, and for a moment the listener sees in his mind's eye his ancient home in an ancient world,--Darkness and Fear and Eyes shining about the cave. It carries him back, and he knows the wilderness as it really is; and to have such knowledge dries up all inclination to talk, as a sponge dries water. Of course the picture isn't entirely plain. It is more a thing guessed at, a photograph in some dark part of an under-consciousness that has constantly grown more dim as the centuries have passed. Possibly sometime it will fade out altogether; and then a man may continue to discuss the weather while the Song from the ridge shudders in at the windows. But the world will be quite cold by then, and no longer particularly interesting. And possibly even the wolves themselves will then be tamed to play dead and speak pieces,--which means the wilderness itself will be tamed. For as long as the wild lasts, the pack will run through it in the winter. They were here in the beginning, and in spite of constant war and constant hatred on the part of men, they will be here in the end. The reason is just that they are the symbol of the wilderness itself, and the idea of it continuing to exist without them is stranger than that of a nation without a flag. It wasn't quite the same song that Dan had listened to in the first days of fall. It had been triumphant then, and proud with the wilderness pride. Of course it had been sad then, too, but it was more sad now. And it was stranger, too, and crept farther into the souls of its listeners. It was the song of strength that couldn't avail against the snow, possibly of cold and the despair and courage of starvation. These three that heard it were inured to the wilderness; but a moment was always needed after its last note had died to regain their gayety. "They're getting lean and they're getting savage," Lennox said one night, stretched on his divan before the fireplace. He was still unable to walk; but the fractures were knitting slowly and the doctor had promised that the summer would find him well. "If we had a dog, I wouldn't offer much for his life. One of these days we'll find 'em in a big circle around the house--and then we'll have to open up with the rifles." But this picture appalled neither of his two young listeners. No wolf pack can stand against three marksmen, armed with rifles and behind oaken walls.