"So much the better," remarked Tom. "We have a chance now of getting inside that cave. But we will have to go back to camp, and make other plans. And we must hurry, or it will be dark before we get there."
They hastened their steps, pausing only briefly to eat some of the lunch they had brought along, and to drink from a spring that bubbled from the side of the mountain. It was getting dusk when they got back to their tent. They found nothing disturbed.
"I wonder if we'll see that phantom again to-night?" ventured Tom, as they were sitting about the campfire a little later.
"Probably not," remarked Mr. Jenks. "I don't believe the ghost will venture down the dangerous trail after dark, and the gang may think that the warning given us by the two men on guard at the cave will be sufficient. But if we don't leave here by to-morrow I think we will have another visit from the thing in white."
It was about an hour after this when Tom was collecting some wood in a pile nearer the fire, so as to have it ready to throw on, in case there was any alarm in the night, that he happened to look up toward the summit of the mountain. A slight noise, as of loose stones
