Phantom Mountain was; in fact, few had heard of it, and I was nearly lost searching for it.
"I came back East, determined to get even. I had given the men a very large sum of money, and, in exchange, they had given me several diamonds. Probably the stones are worth nearly as much as the money I invested, but I was cheated, for I was promised an equal share in the profits. These were denied me, and I was tricked. I determined to be revenged, or at least to discover the secret of making diamonds. It is my right."
"I agree with you," spoke Tom.
"But, up to the time I met you on Earthquake Island, I could form no plan for discovering Phantom Mountain, and learning the secret of the diamond makers," went on Mr. Jenks. "I carried the gems about with me, as you doubtless saw when we were on the island. But I knew I needed an airship in which to fly over the mountains, and pick out the location of the cave where the diamonds are made."
"But how can you locate it, if you were blindfolded when you were taken there, Mr. Jenks?"
"I forgot to tell you that, on our journey into the mountains, and just before I was carried into the cave, I managed to raise one corner of the bandage. I caught a glimpse of a very
