The sight of big avalanches on Mount McKinley warned the explorers that great risks had to be faced. On the 5th day of June they started out for their final attack. Unfortunately the weather became very bad, and soon they were enveloped in a heavy snowstorm. Mr. La Voy had hurt his knee hunting, and the ascent through the seracs was for him very arduous. The nervous strain, too, was great, for they had to be perpetually on the outlook for avalanches. They feared that one might have buried their cache, and it was an immense relief when they reached the 11,000-feet point and saw the top of their sled sticking out of the snow.
They now moved their supplies up to a camp on the col of the ridge at a height of 11,800 feet. On 19th June they made a reconnaissance, taking with them food for six days, and intending to climb up to the big basin between the two main peaks. They reached a height of 13,200 feet up a sensational arête, when Mr. La Voy's knee gave out and they were compelled to return. Three days later they made a camp on the ridge at 13,600 feet. It was a wild and most laborious journey, with a drop of 5,000 feet on the left and of 2,000 on the right. It would take them two hours of hard work to make 500 feet. Apart from the handicap of Mr. La Voy's knee, Mr. Belmore Browne's eyes were very bad. They now realized that they could not reach the summit with their food supply of six days' rations, and they were forced to change their plans, and go back for more food.
They returned to the camp on the col and packed up ten days' rations. With tremendous difficulty they transported them up to a 15,000-feet camp on the ridge, where they were on the edge of the big glacier-filled basin between the two summits. All three found their health beginning to suffer. The pemmican proved to be impossible food, giving them all violent stomach pains, and they were forced to confine themselves to tea and hard-tack. The cold was intense, and inside the tent, with the alcohol stove burning and the warmth of three bodies, the temperature at 7.30 p.m. was five degrees below zero, and three hours later nineteen degrees below zero. "Despite elaborate precautions," says Mr. Belmore Browne, "I can say in all honesty that I did not have a single night's normal sleep above 15,000 feet on account of the cold." By this time their appearance was, as Mr. La Voy said, "sufficient to frighten children into the straight and narrow path." All were more or less snow-blind, burnt black, unshaven, with lips, noses, and hands swollen, cracked, and bleeding.
On 27th June the packs were carried in relays to just under the last serac, which was the highest point in the big basin. The altitude was 16,615 feet. Their one comfort was that a snow-field seemed to lead easily up to the sky-line of the central North-East ridge, and that from there they saw what appeared to be a reasonable gradient to the final summit. On 28th June they rested and prepared for their last effort. They were now convinced that nothing could stop them except storm. The night was fine, and the weather promised well for the morrow. The summit appeared to them to be nearly flat with a slight hummocky rise, which must be the highest point in North America.
On 29th June they left camp at 6 a.m., moving very quietly and steadily and conserving their strength. Mr. La Voy and Mr. Belmore Browne led alternately. Slowly they made their way up the snow slopes at the rate of about 400 feet an hour. At 18,500 feet they stopped and congratulated each other, for they had beaten the Duke of the Abruzzi's record on Mount St. Elias. Presently they were on the sky-line of the ridge, and looking down on the arena where they had struggled two years before. Now, for the first time, came a threat from the weather. The sky was clear to the north, but from the south a great sea of clouds rolled against the mountain like surf on a shore.
As they moved up the ridge breathing became more difficult. At 19,000 feet they had passed the last rock, and were looking at the summit. It rose as innocently as a snow-covered tennis court, but now the wind was rising and the southern sky darkening, and just at the base of the last lift the gale broke. In a fierce scurry of snow they crawled up the round dome, Mr. La Voy leading and hacking steps. Then came Mr. Belmore Browne's turn, and he realized that his hands were freezing, and that the bitter wind was cutting through his flesh. He dare not get dry mittens from his rucksack lest his hands should be frozen during the change. When his second turn was three-fourths finished, Professor Parker's barometer registered 20,000 feet, and they were within 300 feet of the top.
The rest was an evil dream. To each man the other two seemed to be lost in the ice mist, and the cold was freezing their marrow. The storm was growing fiercer, and as they topped a little rise its full fury burst upon them. The story must be given in Mr. Belmore Browne's own words:—
"The breath was driven from my body, and I held to my axe with stooped shoulders to stand against the gale; I could not go ahead. As I brushed the frost from my glasses and squinted upward through the stinging snow I saw a sight that will haunt me to my dying day. The slope above me was no longer steep! That was all I could see. What it meant I will never know for certain—all I can say is that we were close to the top!"
There was no going on in the teeth of that gale. The three chopped a seat in the ice, trying to find a shelter; but they were not huddled there a second before they discovered they were freezing. There was nothing for it but to return, for the snow was obliterating their back trail. Dead tired and sick at heart they began the journey back, and found that the steps they had cut had disappeared. It took them nearly two hours to go down an easy slope of 1,000 feet. They reached the base of the dome, guiding themselves only by the direction of the wind, and at last at 7.35 p.m. crawled into their upper camp. All their apparel down to their underclothes was filled with ice. They were beaten by the wind, and by the wind only. On a conservative estimate its pace was fifty-five miles an hour, and the temperature fifteen degrees below zero. Otherwise they suffered little from the altitude. Mr. Belmore Browne was able to roll and smoke a cigarette between 18,000 and 19,000 feet.
They spent a day in their tent, trying to thaw their clothes. Pemmican they could not touch, their chocolate was finished, and their food was tea, sugar, hardtack, and raisins. It was a cruel fate that they had lost ten days' rations in useless pemmican since leaving their 13,200-feet camp, and they had not only lost the food but carried useless weight.