The boat slipped over the stone as easily as if it had been a wave and, gliding into still water below, lodged on the bank.

Ken crawled out of the stream, and when he ascertained that no one was injured he stretched himself on the ground and gave up to mirth. Pepe resembled a drowned rat; Hal was an object to wonder at; and George, in his coating of slime and with strings of moss in his hair, was the funniest thing Ken had ever seen. It was somewhat of a surprise to him to discover, presently, that the boys were convulsed with fiendish glee over the way he himself looked.

By and by they recovered, and, with many a merry jest and chuckle of satisfaction, they repacked the boat and proceeded on their way. No further obstacle hindered them. They drifted out of the shady jungle into the sunlit river.

In half a mile of drifting the heat of the sun dried the boys' clothes. The water was so hot that it fairly steamed. Once more the boat entered a placid aisle over which the magnificent gray-wreathed cypresses bowed, and the west wind waved long ribbons of moss, and wild fowl winged reluctant flight.

Ken took advantage of this tranquil stretch of river to work on his map. He realized that he must use every spare moment and put down his drawings and notes as often as time and travel permitted. It had dawned on Ken that rapids and snakes, and all the dangers along the river, made his task of observation and study one apt to be put into eclipse at times. Once or twice he landed on shore to climb a bluff, and was pleased each time to see that he had lined a comparatively true course on his map. He had doubts of its absolute accuracy, yet he could not help having pride in his work. So far so good, he thought, and hoped for good-fortune farther down the river.

XII

CATCHING STRANGE FISH

Beyond a bend in the river the boys came upon an island with a narrow, shaded channel on one side, a wide shoal on the other, and a group of huge cypresses at the up-stream end.

"Looks good to me," said Hal.

The instant Ken saw the island he knew it was the place he had long been seeking to make a permanent camp for a few days. They landed, to find an ideal camping site. The ground under the cypresses was flat, dry, and covered with short grass. Not a ray of sunlight penetrated the foliage. A pile of driftwood had lodged against one of the trees, and this made easy the question of fire-wood.