Hardly were the words out of his mouth when more trouble ensued. The canyon broadened and instead of the river being confined in a deep, fast-flowing current, it was spread out into a shallow, dawdling stream. Several times they grounded, there was so little water covering the sand. Here and there rocks stuck above the water, and in places it was necessary to jump out and push the boat into a deeper part.
“It seems to me we’re going to get that trouble right now,” said Bob. “As soon as this narrows a little bit, if it doesn’t get deeper I bet we’ll have rapids with a vengeance.”
This turned out to be the case, for the water went faster as they proceeded, and instead of the sandy bottom, rocks became more and more numerous, the water rushing by them with angry murmurs. Bob had difficulty in keeping the craft from mishap. After narrowly escaping shipwreck between two particularly vicious looking jagged stones he decided that there was no safety in going on the way they had. Suddenly he had an idea.
“The next time we get to a shallow spot, Jerry,” he ordered between strokes, “take hold of the painter and jump out. We must bring the bow up stream.”
Jerry saw that Bob must have some good reason for the maneuver and without a word took hold of the rope which was fastened to the bow of the light craft and slipped overboard at the first likely spot. Pressing himself against a rock, he held taut and let the action of the current, helped by Bob’s pulling strongly on one oar, turn the boat’s nose in the direction from which they had come. It was ticklish work in view of the position in which they were placed. But once around he saw what Bob had in mind when he had planned the stunt, for as soon as he was aboard again Bob began rowing against the current. This allowed the boat to go very slowly down stream. In this way he had much more control than merely backing water could give him. Besides he could see for himself what was coming, as in a rowing position he naturally faced the stern.
“A good idea,” commented Jerry as Bob, due to the new method of progress, missed hitting a wicked rock.
This word of commendation from his comrade pleased Bob immensely. It was the first word of approval he had had from his gloomy chum. “Easier, that’s all!” he answered. But both boys were glad when a new stretch of still water was reached.
Just before sundown next day they came to an obstacle which at first sight rather daunted them. As they rounded a bend, the most surprising bit of scenery they had so far encountered flashed before their eyes. The canyon seemed to stop, to have no outlet. It was as if they had come into an amphitheater from which there was no escape. Even the way they had come in was not visible. The point of rocks which had made the bend in the river merged into the sides of the canyon in such a way as to make it seem that there was no opening at all.
“Golly!” almost whispered Bob, awed by the strangeness of the scene. “I reckon this is why no one came through. There doesn’t seem to be any way to get out—”
“There’s got to be a way through,” growled Jerry. “Where does the water go? Must go somewhere; can’t stop here, that’s sure as rain.”