Presently out of the lower whiteness a silvery flicker shook and vanished. The silver spark vanished and glinted lower. Old Nog, peering below the pass, was so excited that he nearly fell over the three long green toes of each foot, in his haste to overlook more of the water. A second fish tried to leap the weir: with sideways flaps of tail it struggled up the spillway, but the claws of the water pulled it back. The moon in its first bright quarter was smitten into a myriad shimmerings by the lower turmoil. Suddenly, it seemed, the shimmerings were drawn together into a larger quartered moon, which rose out of the water in a silvery curve, and fell into the pool above, soundlessly in the immense roar of the fall.
The otters were lying in an uvver, or hollow, near the right bank, away from the tug of the cascade plunging down the fish-pass. The water in the uvver turned quietly. On its surface revolved a wheel of sticks, riveted by bubbles. The otters turned with it, hanging rudders down in the current. When the salmon leapt the weir, the bitch became rigid and her nostrils widened; but before the burst of the splash had dropped back, she had become supple again. The back of her sleek head gleamed and was gone. The cubs followed her, naturally so swift that a human observer might have wondered what cry or signal had been made by the otter.
They swam by the bank until the pull of the water grew less, when the mother turned into midstream and sought the salmon by working upwater from bank to bank through the gloomy and tumultuous spate. The current forced them
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