“I think we would better push on a little further before we stop for lunch.”

They plunged into a snow-drift to the knees, and when they had floundered through it for thirty yards or so Weston sank suddenly well over his waist. He flung himself forward, and with the help of Kinnaird wriggled clear, but when they looked down there was empty blackness beneath the hole he had made.

“It’s a snow-bridge, I think, sir,” he said. “The creek’s running under it. Anyway, I didn’t touch anything solid with my feet.”

Kinnaird’s face grew graver.

“If you’re right,” he observed, “it would be wiser to work around.”

They spent an hour doing it, and then, crossing knee-deep, they sat down on a ledge of jutting rock while Weston laid out a simple meal. It was very cold in the shadow of the peak, and a bitter wind that seemed to be gathering strength whistled eerily about the desolation of rock and snow. They were wet to the knees, and Weston fancied that the girls’ cheerfulness was a trifle forced. He was ready to admit that he was somewhat stiff and weary, for he had carried the provisions and the heavy blankets that the girls had now tucked round them.

The latter commenced to flag when they started again; and, as it happened, the strip of bench they followed rapidly narrowed in and grew rougher until it became little more than a sloping ledge with the hillside dropping almost sheer away from it. It was strewn with great fragments that had fallen from the wall of rock above, and banks of snow lay packed between them in the hollows. Every now and then one or another of the party sank deep on stepping down from some ledge of slippery stone. They were on the northern side of a spur of the higher range, though they were approaching the angle where it broke off and fell in a steep declivity facing west. This point they had to turn before they reached the spot from which Kinnaird purposed descending to the river. They made very slow progress, while the shadow of the peaks grew blacker and longer across the hills. At length, when they had almost reached the corner, Kinnaird stopped to consider, and the girls sat down with evident alacrity. This time he looked at Weston, and his manner implied that he was willing to consider any views that he or the others might express.

“I’m afraid that I have been a little at fault,” he admitted. “In fact, I quite expected that we would be down again by this time. It is now well on in the afternoon, and, as we have probably covered about two-thirds of the distance, it would not be advisable to go back as we came up.”

“That,” said Arabella Kinnaird decisively, “is unthinkable.”

She turned to Weston, who nodded.