Sylvia thought no more of his words at the moment. They reached the lateral glacier, descended it and crossed the Glacier d'Argentière. They found their stone-encumbered pathway of the morning and at three o'clock stood once more upon the platform in front of the Pavillon de Lognan. Then she rested for a while, saying very little.

"You are tired?" he said.

"No," she replied. "But this day has made a great difference to me."

Her guides approached her and she said no more upon the point. But Chayne had no doubt that she was referring to that decision which she had taken on the summit of the peak. She stood up to go.

"You stay here to-night?" she said.

"Yes."

"You cross the Col Dolent to-morrow?"

"Yes."

She looked at him quickly and then away.

"You will be careful? In the shadow there?"