With a backwoodsman's skill in the art of whittling, he had made good progress toward the shaping of a toy hand-sled, when, looking up from his task, he saw something that mightily changed the face of affairs. He threw away the half-shaped toy, thrust the knife back into his belt, and rose to his feet. After a long, sagacious survey of the flood, he drew his knife again, and proceeded to cut himself a stout staff, a sort of alpenstock. He saw that an ice-jam was forming just above the falls.
The falls of the Big Fork lie at a sharp elbow of the river, and cross the channel on a slant. Immediately above them the river shoals sharply; and though at ordinary seasons there is only one island visible, at times of low water huge rocks appear all along the brink. It chanced, at this particular time, that after the first run of the ice had passed there came a second run that was mixed with logs. This ice, moreover, was less rotten than that which had formed near the falls, and it came down in larger cakes. When some of these big cakes, cemented with logs, grounded on the head of the island, the nucleus of a jam was promptly formed. At the same time some logs, deeply frozen into an ice-floe, caught and hung on one of the unseen mid-stream ledges. An accumulation gathered in the crook of the elbow, over on the farther shore; and then, as if by magic, the rush stopped, the flood ran almost clear from the lip of the falls, and the river was closed from bank to bank.
The woodsman sat quietly watching, as if it were a mere idle spectacle, instead of the very bridge of life, that was forming before his eyes. Little by little the structure welded itself, the masses of drift surging against the barrier, piling up and diving under, till it was compacted and knit to the very bottom,—and the roar of the falls dwindled with the diminishing of the stream. This was the moment for which the man was waiting. Now, if ever, the jam was solid, and might hold so until he gained the farther shore. But beyond this moment every second of delay only served to gather the forces that were straining to break the obstruction. He knew that in a very few minutes the rising weight of the flood must either sweep all before it, or flow roaring over the top of the jam in a new cataract that would sweep the island bare. He sprang to his feet, grasped his stick, and scanned the tumbled, precarious surface, choosing his path. Then he turned and looked at the bear, wondering if that animal's woodcraft were subtler than his own to distinguish when the jam was secure. He found that the bear was eyeing him anxiously, and not looking at the ice at all; so he chuckled, told himself that if he didn't know more than a bear he'd no business in the woods, and stepped resolutely forth upon the treacherous pack. Before he had gone ten paces the bear jumped up with a whimper, and followed hastily, plainly conceding that the man knew more than he.
In the strange, sudden quiet, the shrunken falls clamouring thinly and the broken ice swishing against the upper side of the jam, the man picked his way across the slippery, chaotic surface of the dam, expecting every moment that it would crumble with a roar from under his feet. About ten or a dozen yards behind him came the bear, stepping hurriedly, and trembling as he looked down at the diminished cataract. The miracle of the vanishing falls daunted his spirit most effectively, and he seemed to think that the whole mysterious phenomenon was of the man's creating. When the two reached shore, the flood was already boiling far up the bank. Without so much as a thank you, the bear scurried past his rescuer, and made off through the timber like a scared cat. The man looked after him with a slow smile, then turned and scanned the perilous path he had just traversed. As he did so, the jam seemed to melt away in mid-channel. Then a terrific, rending roar tortured the air. The mass of logs and ice, and all the incalculable weight of imprisoned waters hurled themselves together over the brink with a stupefying crash, and throbbing volumes of spray leapt skyward. The woodsman's lean face never changed a muscle; but presently, giving a hitch to his breeches under the belt, he muttered thoughtfully:
"Blame good thing we come away when we did!"
Then, turning on his larriganed heels, he strode up the trail till the great woods closed about him, and the raving thunders gradually died into quiet.