Above them the slopes stretched upward to a great line of towering ice-cliffs. Through and up those ice-cliffs a way had to be found. And at any moment, loosened by the sun, huge blocks and pinnacles might break from them and come thundering down. As it was, upon their right hand where the snow-fields fell steeply in a huge ice gully, between a line of rocks and the cliffs of Mont Maudit, the avalanches plunged and reverberated down to the Brenva glacier. Pierre Delouvain took the lead again, and keeping by the line of rocks the party ascended the steep snow-slopes straight toward the wall of cliffs. But in a while the snow thinned, and the ax was brought into play again. Through the thin crust of snow, steps had to be cut into the ice beneath, and since there were still many hundreds of feet to be ascended, the steps were cut wide apart. With the sun burning upon his face, and his feet freezing in the ice-steps, Walter Hine stood and moved, and stood again all through that afternoon. Fatigue gained upon him, and fear did not let him go. "If only I get off this mountain," he said to himself with heartfelt longing, "never again!" When near to the cliffs Pierre Delouvain stopped. In front of him the wall was plainly inaccessible. Far away to the left there was a depression up which possibly a way might be forced. "I think, monsieur, that must be the way," said Pierre. "But you should _know_" said Garratt Skinner. "It is some time since I was here. I have forgotten;" and Pierre began to traverse the ice-slope to the left. Garratt Skinner followed without a word. But he knew that when he had ascended Mont Blanc by the Brenva route twenty-three years before, he had kept to the right along the rocks to a point where that ice-wall was crevassed, and through that crevasse had found his path. They passed quickly beneath an overhanging rib of ice which jutted out from the wall, and reached the angle then formed at four o'clock in the afternoon. "Our last difficulty, Wallie," said Garratt Skinner, as he cut a large step in which Hine might stand. "Once up that wall, our troubles are over." Walter Hine looked at the wall. It was not smooth ice, it was true; blocks had broken loose from it, and had left it bulging out here, there, and in places fissured. But it stood at an angle of 65 degrees. It seemed impossible that any one should ascend it. He looked down the slope up which they had climbed--it seemed equally impossible that any one should return. Moreover, the sun was already in the West, and the ice promontory under which they stood shut its warmth from them. Walter Hine was in the shadow, and he shivered with cold as much as with fear. For half an hour Pierre Delouvain tried desperately to work his way up that ice wall, and failed. "It is too late," he said. "We shall not get up to-night." Garratt Skinner nodded his head.