"Play him, play him!" shouted Ken. "You've got plenty of line. Give him some."

Hal now added his weight and strength, and the three of them, unmindful of Ken's advice, hauled back with might and main. The line parted and they sprawled on the grass.

"What a sockdologer!" exclaimed Hal.

"I had that hook baited with a big piece of duck meat," said George. "We must have been hooked to a crocodile. Things are happening to us."

"Yes, so I've noticed," replied Ken, dryly. "But if you fellows hadn't pulled so hard you might have landed that thing, whatever it was. All aboard now. We must be on the move--we don't know what we have before us."

When they got into the boat Ken took the oars, much to Pepe's surprise. It was necessary to explain to him that Ken would handle the boat in swift water. They shoved off, and Ken sent one regretful glance up the river, at the shady aisle between the green banks, at the white rapids, and the great colored dome of the mountain. He almost hesitated, for he desired to see more of that jungle-covered mountain. But something already warned Ken to lose no time in the trip down the Santa Rosa. There did not seem to be any reason for hurry, yet he felt it necessary. But he asked Pepe many questions and kept George busy interpreting names of trees and flowers and wild creatures.

Going down-stream on any river, mostly, would have been pleasure, but drifting on the swift current of the Santa Rosa and rowing under the wonderful moss-bearded cypresses was almost like a dream. It was too beautiful to seem real. The smooth stretch before the first rapid was short, however, and then all Ken's attention had to be given to the handling of the boat. He saw that George and Pepe both expected to get out and wade down the rapids as they had waded up. He had a surprise in store for them. The rapids that he could not shoot would have to be pretty bad.

"You're getting close," shouted George, warningly.

With two sweeps of the oars Ken turned the boat stern first down-stream, then dipped on the low green incline, and sailed down toward the waves. They struck the first wave with a shock, and the water flew all over the boys. Pepe was tremendously excited; he yelled and made wild motions with his hands; George looked a little frightened. Hal enjoyed it. Whatever the rapid appeared to them, it was magnificent to Ken; and it was play to manage the boat in such water. A little pull on one oar and then on the other kept the stern straight down-stream. The channel he could make out a long way ahead. He amused himself by watching George and Pepe. There were stones in the channel, and the water rose angrily about them. A glance was enough to tell that he could float over these without striking. But the boys thought they were going to hit every stone, and were uneasy all the time. Twice he had to work to pass ledges and sunken trees upon which the current bore down hard. When Ken neared one of these he dipped the oars and pulled back to stop or lessen the momentum; then a stroke turned the boat half broadside to the current. That would force it to one side, and another stroke would turn the boat straight. At the bottom of this rapid they encountered a long triangle of choppy waves that they bumped and splashed over. They came through with nothing wet but the raised flap of canvas in the stern.

Pepe regarded Ken with admiring eyes, and called him grande mozo.