John nodded. "If you can cast as light a thing as a little trout fly with this rod," he said, "you ought to be able to cast these hooks--larger, not much heavier, and just about right to go straight. Anyhow, let's go down and try." "Good idea!" agreed Rob. And they all departed, the Aleut boy with them, to the lower reaches of the stream, where, as has been said, the salmon now more frequently resorted. As they stood on the bank above the big pool they looked down into it, and saw that the sea-tide run of the salmon had brought in the average number of fish. The whole interior of the pool, which otherwise would have had a dark-green appearance, seemed to be made up of melted silver layers, all in motion. There were hundreds of fish moving about, up and down, and round and round, hesitating about following up the thread of the fresh water, and not wanting to go back to the salt water, which lay behind them. "My gracious, there's about a million in there!" exclaimed John, peering over the edge. "Yes, but Skookie couldn't get any with the snag-pole now," said Rob. "They're getting wise and stay too far out. I shouldn't wonder if your idea was a good one, if only that rod were stronger." Rob rubbed his chin meditatively. "You are welcome to try first. I don't want to break that rod, and I know what will happen if you hook on to a big fish with it." John set his lips in determination, none the less, and stepped down to the edge of the pool. Slowly the interior mass of silver seemed to grow fainter. The fish saw him, and moved gently away to the opposite side of the pool. Presently, however, they could see the shining mass edge back again to the centre of the pool, where the deeper water was over the gravel. John began to cast the hooks back and forward above his head, as every fisherman does in casting a fly. Little by little he lengthened the line, still keeping it in the air, until he saw he had out enough to reach well across the pool. Then, gently as he could, he dropped the line and its gang of hooks on the surface of the water. The hooks, being small, were not heavy enough to sink the line directly. John waited and allowed it to settle until the hooks were flat on the bottom on the farther side of the pool. He looked down on the water and saw the silvery mass divided in two sections, as though the line had cut it. The keen eyes of the fish, heedless as they usually are in the spring run, had now grown more suspicious, and they settled apart as the line came across them, visible against the sky as they looked up from below.