On 27th June they reached the head of the main glacier, beyond which, through a narrow gorge, a secondary glacier descended from the mountains, Another glacier came down on their right, and here they achieved an interesting piece of detective work. At the top of it they saw some peaks which recalled an illustration in Dr. Cook's book. The illustration purported to be the summit of Mount McKinley, and showed on the left a rock shoulder which Dr. Cook described as a cliff of 8,000 feet. It was really a faked picture of the small peaks at the head of this glacier, miles and miles from the main mountain, and the cliff of 8,000 feet turned out only to rise 300 feet above the floor, and to be only 5,300 feet above sea-level. One legend at any rate had been dispelled for ever. Now began the patient relaying of provisions up the great gorge. It was desperately hard manual labour, their faces were burnt black by the glare of the sun, and every now and then there would be a slip into a crevasse, which only the highest good fortune saved from being a tragedy. After thirty-six days of hard travelling, they were at last within two miles of the base of the southern cliffs of Mount McKinley. They found themselves in a great ice basin, hemmed in by colossal precipices down which avalanches thundered. Before them rose the mountain, 15,000 feet of rock and ice. Their glasses showed them that the South-West ridge became utterly unclimbable after an altitude of about 15,000 feet. The southern North-East ridge looked more promising, and to this they turned their attention. In that Northern summer there was no dark. "The advance and retreat of the night shadows went on with scarcely a pause, and sometimes we would be uncertain whether the Alpine glow on the big mountain's icy crest was the light of the rising or the setting sun." They had now a short spell of rest from their toil; and as the mind of man on such occasions turns to food, they invented out of their scanty larder a new pudding. Here is the recipe. "First soak three broken hard-tack in snow-water until they are soft. Add 60 raisins and pemmican the size of 4½ eggs. Stir slowly but energetically until the mess is thoroughly amalgamated. Boil slowly over an alcohol stove, add three tablespoonfuls of granulated sugar, and serve in a granite-ware cup." But between them and the North-East ridge lay a gigantic _serac_. For a day and a half they lay storm-bound under it, and then, on the morning of 11th July, tried to cut their way up the ice wall. It proved most difficult and dangerous work, and presently, owing to the diminishing provisions, they realized it was impossible. Again and again they attempted it, for only that way was there a road to the North-East ridges. But at last they had to give it up as hopeless, and turn their attention to the South-West _arête_.