The Boy had timed his coming none too early; for the pond had dropped nearly a foot, and the beavers were impatient to stop the break. No sooner had night fairly settled down than suddenly the water began to swirl into circles all about the lower end of the pond, and a dozen heads popped up. Then more brush appeared, above the island-house, and was hurriedly towed down to the dam. The brush which had been thrust across the break was now removed and relaid longitudinally, branchy ends down stream. Here it was held in place by some of the beavers while others brought masses of clayey turf from the nearest shore to secure it. Meanwhile more branches were being laid in place, always parallel with the current; and in a little while the rushing noise of the overflow began to diminish very noticeably. Then a number of short, heavy billets were mixed with shorter lengths of brush; and all at once the sound of rushing ceased altogether. There was not even the usual musical trickling and tinkling, for the level of the pond was too low for the water to find 76 its customary stealthy exits. At this stage the engineers began using smaller sticks, with more clay, and a great many small stones, making a very solid-looking piece of work. At last the old level of the dam crest was reached, and there was no longer any evidence of what had happened except the lowness of the water. Then, all at once, the toilers disappeared, except for one big beaver, who kept nosing over every square inch of the work for perhaps two minutes, to assure himself of its perfection. When he, at last, had slipped back into the water, both Jabe and the Boy got up, as if moved by one thought, and stretched their cramped legs.
“I swan!” exclaimed the woodsman with fervour. “If that ain’t the slickest bit o’ work I ever seen! Let’s go over and kind of inspect the job fer ’em!”
Inspection revealed that the spot which had just been mended was the solidest portion of the whole structure. Wherever else the water might be allowed to escape, it was plain the beavers intended it should have no more outlet here.
From the mended dam the Boy now led Jabe away up-stream in haste, in the hope of catching 77 some beavers at work on the new dam in the alders. Having skirted the long pond at a distance, to avoid giving alarm, the travellers went with the utmost caution till they reached the swampy level. Then, indifferent to the oozy, chilly mud, they crept forward like minks stealing on their prey; and at last, gaining the fir thicket without mishap, they lay prone on the dry needles to rest.
As they lay, a sound of busy splashing came to their ears, which promptly made them forget their fatigue. Shifting themselves very slowly and with utter silence, they found that the place of ambush had been most skilfully chosen. In perfect hiding themselves, they commanded a clear and near view of the new dam and all its approaches.
There were two beavers visible, paddling busily on the foundations of the dam, while the overflowing water streamed about them, covering their feet. At this stage, most of the water flowed through the still uncompacted structure, leaving work on the top unimpeded. The two beavers were dragging into place a long birch sapling, perhaps eleven feet in length, with a thick, bushy top. When laid to the satisfaction of the architects,––the butt, of course, pointing straight up-stream,––the trunk 78 was jammed firmly down between those already placed. Then the more erect and unmanageable of the branches were gnawed off and in some way––which the observers with all their watchfulness could not make out––wattled down among the other branches so as to make a woven and coherent mass. The earth and sod and small stones which were afterwards brought and laid upon the structure did not seem necessary to hold it in place, but rather for the stoppage of the interstices.
While this was going on at the dam, a rustling of branches and splashing of water turned the watchers’ attention up-stream. Another beaver came in sight, and then another, each partly floating and partly dragging a straight sapling like the first. It seemed that the dam-builders were not content to depend altogether on the crooked, scraggly alder-growth all about them, but demanded in their foundations a certain proportion of the straighter timbers and denser branches of the birch. It was quite evident that they knew just what they were doing, and how best to do it.
While the building was going on, yet another pair of beavers appeared, and the work was pressed with a feverish energy that produced amazing results. 79 The Boy remembered a story told him by an old Indian, but not confirmed by any natural history which he had come across, to the effect that when a pair of young beavers set out to establish a new pond, some of the old ones go along to lend a hand in the building of the dam. It was plain that these workers were all in a tremendous hurry; and the Boy could see no reason for haste unless it was that the majority of the workers had to get back to their own affairs. With the water once fairly brought under control, and the pond deep enough to afford a refuge from enemies, the young pair could be trusted to complete it by themselves, get their house ready, and gather their supplies in for the winter. The Boy concluded to his own satisfaction that what he was now watching was the analogue, in beaver life, to one of those “house-raising” bees which sometimes took place in the Settlement, when the neighbours would come together to help a man get up the frame of a new house. Only, as it seemed to him, the beavers were a more serious and more sober folk than the men.
When this wilderness engineering had progressed for an hour under the watchers’ eyes, Jabe began to grow very tired. The strain of physical immobility 80 told upon him, and he lost interest. He began to feel that he knew all about dam-building; and as there was nothing more to learn he wanted to go back to camp. He glanced anxiously at the young face beside him––but there he could see no sign of weariness. The Boy was aglow with enthusiasm. He had forgotten everything but the wonderful little furry architects, their diligence, their skill, their coöperation, and the new pond there growing swiftly before his eyes. Already it was more than twice as wide as when they had arrived on the scene; the dam was a good eight inches higher; and the clamour of the flowing stream was stopped. No, Jabe could see no sympathy for himself in that eager face. He was ashamed to beg off. And moreover, he was loyal to his promise of obedience. The Boy, here, was Captain.
Suppressing a sigh, Jabe stealthily and very gradually shifted to an easier position, so stealthily that the Boy beside him did not know he had moved. Then, fixing his eyes once more upon the beavers, he tried to renew his interest in them. As he stared, he began to succeed amazingly. And no wonder! The beavers all at once began to do such 81 amazing things. There were many more of them than he had thought; and he was sure he heard them giving orders in something that sounded to him like the Micmac tongue. He could not believe his ears. Then he saw that they were using larger stones, instead of mud and turf, in their operations––and floating them down the pond as if they were corks. He had never heard of such a thing before, in all his wilderness experience. He was just about to compliment the Boy on this unparalleled display of engineering skill, when one particularly large beaver, who was hoisting a stone as big as himself up the face of the dam, let his burden slip a little. Then began a terrible struggle between the beaver and the stone. In his agonizing effort––which his companions all stopped work to watch––the unhappy beaver made a loud, gurgling, gasping noise; then, without a hint of warning, dropped the stone with a splash, turned like lightning, and grabbed Jabe violently by the arm.