Tuck emptied his pipe and rose. "I'll go see Freet now and persuade him to get busy with the Chief in Washington. One thing, Manning. It will be a dangerous undertaking. We may not come through alive. You must get used to the idea, though, that every Project demands its toll of deaths. People don't realize that. Are you willing to go, knowing the risk?" With all the valor of youth and ignorance, Jim answered, "I'm ready to start now." Mr. Freet was not adverse to the undertaking and the Washington office shrugged its shoulders. The Project engineer talked seriously to Jim, though, about the danger of the mission and insisted that he write home about it before finally committing himself. Jim's letter home, however, would have moved a far more stolid spirit than Uncle Denny, for he sketched the danger hazily and dwelt at length on the honor and glory of the undertaking. The reply from the brownstone front was as enthusiastic as Jim could desire. Tuck undertook the preparations for the expedition with the utmost care. Only the two of them were to go. The outfit must be such as they could handle themselves, yet as complete as possible. Two folding canvas boats, two air mattresses, life preservers, waterproof bags, first aid appliances, brandy, sweet oil, surveying implements, food in as compact form as possible, guns and fishing tackle made a formidable pile for two men to manage. But at Jim's protest Charlie answered grimly that they would not be heavily laden when they came out of the canyon. It was mid-August when the two men reached the Makon country. They arranged with a rancher to take them and their outfit up to the river. There was no road, scarcely even a trail up to the canyon. The green of the ranches was encircled by a greasewood-covered plain that, toward the river, became rock covered and rough so that a wagon was out of the question and the sturdy pack horses themselves could move but slowly. Jim's first view of the Makon Canyon was of a black rift in a rough brown sea of sand, with a blue gray sky above. As the little pack train drew nearer he saw that the walls of the rift were weathered and broken into fissures and points of seeming impassable roughness. So deep and so craggy were these walls that the river a half mile below could be seen only at infrequent intervals. The labor of getting into the crevice would be quite as difficult, Jim thought, as going through it. They made camp that night close beside the canyon edge. Early the next morning the rancher left them and Charlie and Jim prepared to get themselves and their outfit down over the mighty, bristling walls. Lowering each other and the packs by ropes, sliding, rolling, jumping, crawling, it was night before they reached the river's edge, where they made camp. There was a narrow sandy beach with a cottonwood tree growing close to the granite wall. Under this they put their air mattresses and built their fire.