They set out a few minutes later, taking with them a pole which had a big iron hook lashed to it and a long Indian salmon spear. There was a small fork at one end of the latter on which were placed two nicely made bone barbs attached to the haft by strips of sinew. Harry removed them to show Frank that they would slip off their sockets easily. Leaving the clearing, they struck into a narrow trail through the bush, and after half an hour's scramble over fallen logs and through thick fern they reached the river.
It poured frothing out of shadowy forest and leaped over a rock ledge in a thundering fall, beneath which it swirled around a deep basin, and then after sweeping down a white rapid, spread out over a wide belt of stones. There were rocks on either side of it, and, as the trees could find no hold on them, warm sunlight streamed down upon the foaming water. Harry sat down on a ledge above the pool with the spear beside him and pointed to a great bird wheeling on slanted wings above the shallow.
"A fish eagle," he said. "Here are salmon making up."
Frank watched the circling of the majestic bird, which did not seem much afraid of them. It had a white head and a cruel beak, and once when it swept over him he noticed the fixed gaze of its cold, impassive eye. Splendid as it was, he somehow shrank from the thing. It looked so powerful and utterly merciless. When it stopped in the air, dropped, and struck, he saw a splash as a writhing, silvery creature was snatched up in its talons.
"Got him wrong!" cried Harry. "You watch. He'll have to let go again."
So far as Frank could see, the eagle had seized the salmon by the middle of its back, the fish twisting itself crossways as it was carried up into the air. The next moment there was a splash in the water and the bird swooped down again. When it rose it held its prey differently, and Frank fancied he could see one wicked claw gripping the fish close by the back of its neck, while the other was spread out toward its tail. In any case, the salmon did not seem able to wriggle now, and the eagle flew off with it and vanished among the tops of the black firs.
"Not a big fish, but I've a notion the eagle could lift a thing as heavy as itself," said Harry. "They're mighty powerful. It might be the one he dropped, though I think it's another."
Frank had no idea how much an eagle weighed, but he realized something of the capabilities of a bird that could carry off this fish apparently without an effort, and, what was more astonishing, drag the tremendously muscular creature out of the water which was its home. Then his companion touched his shoulder.
"Watch those two fellows in the eddy," said he. "They're going to rush the fall."
Frank saw two slim shadows shoot out beneath a wreath of circling foam and flash—which seemed the best word for it—through the crystal depths of the slacker part of the pool. They were lost in the snowy turmoil near the foot of the fall, and a few minutes passed before he saw them again. Then one shot out of the water like a bow that had suddenly straightened itself, gleamed resplendent with silver, and plunged into the foam again. Harry pointed him out the other, and though it was a moment or two before he could see it he marveled when he did. It had its dusky back toward him, for now and then the dorsal fin rose clear, and it was swimming up a thin cascade which poured down a steep slope of stone. That any creature should have strength enough to stem that rush of water seemed incredible, but there was no doubt that the fish was ascending inch by inch. Then it found a momentary harbor in a little pool just outside the main leap of the fall, and shot out of it again with its curious uncurving spring. Frank watched it eagerly when it dropped into the fall, and it was with a sense of sympathy that he saw its gallant efforts wasted as it was suddenly swept down. Before reaching the bottom, however, it had evidently rallied all its powers, for it flashed clear into the sunlight, and had recovered a fathom when he lost sight of it once more.