Ken climbed the bluff, accompanied by the boys, and found it covered with palm-trees. Up there everything was so dry and hot that it did not seem to be jungle at all. Even the palms were yellow and parched. Pepe stood the heat, but the others could not endure it. Ken took one long look at the surrounding country, so wild and dry and still, and then led the way down the loose, dusty shelves. Thereupon he surveyed the right branch of the river and followed it a little distance. The stream here foamed and swirled among jagged rocks. At the foot of this rapid stretched the first dead water Ken had encountered for miles. A flock of wild geese rose from under his feet and flew down-stream. “Geese!” exclaimed Ken. “I wonder if that means we are getting down near lagoons or big waters. George, wild geese don’t frequent little streams, do they?” “There’s no telling where you’ll find them in this country,” answered George. “I’ve chased them right in our orange groves.” They returned to look at the left branch of the river. It was open and one continuous succession of low steps. That would have decided Ken even if the greater volume of water had not gone down on this left side. As far as he could see was a wide, open river running over little ledges. It looked to be the easiest and swiftest navigation he had come upon, and so indeed it proved. The water was swift, and always dropped over some ledge in a rounded fall that was safe for him to shoot. It was great fun going over these places. The boys hung their feet over the gunwales most of the time, sliding them along the slippery ledge or giving a kick to help the momentum. When they came to a fall, Ken would drop off the bow, hold the boat back and swing it straight, then jump in, and over it would go--souse! There were so many of these ledges, and they were so close together, that going over them grew to be a habit. It induced carelessness. The boat drifted to a brow of a fall full four feet high. Ken, who was at the bow. leaped off just in time to save the boat. He held on while the swift water surged about his knees. He yelled for the boys to jump. As the stern where they sat was already over the fall it was somewhat difficult to make the boys vacate quickly enough. “Tumble out! Quick!” bawled Ken. “Do you think I’m Samson?”