rolling down, attracted his attention, and, at first, he feared lest another landslide was beginning, but a moment later he saw what caused it.
There, advancing down the steep and dangerous trail was the figure in white—the phantom. Instantly a daring plan came into Tom's head. Dropping the wood softly, he moved back out of the glare of the fire.
"Mr. Jenks!" he called in a whisper.
The diamond man, who was behind the tent, came toward Tom.
"What is it?" he asked. Then, as he saw the ghostly visitor, he added: "Oh—the phantom again! What's it up to?"
"The same thing," replied Tom, "but it won't do it long, if my plan succeeds."
"What plan is that, Tom?"
"I'm going to try to capture that—that man—or whatever it is. Will you help?"
"Surely!"
"Then let's work around behind it, while Mr. Damon and Mr. Parker come up from in front. We'll solve this part of the mystery, anyhow, if it's possible!"
The two other men were soon told of the plan. Meanwhile the thing in white had advanced slowly, until within a few hundred feet of the camp. They could see now that it was
