“I believe we are not a dozen miles from the spot.”

“Then let us locate it at once. If you will come aboard the Dolphin it shall be placed at your disposal.”

“I will do so.”

Captain Uriah hustled away to make provision. Soon he was at the gangway all in readiness with mining tools and two of his crew.

They entered one of the ship’s boats and were rowed over to the Dolphin, as the pontoon was too light to hold them all.

It had been arranged that the Belden should hover about the vicinity for several days, or until the Dolphin should return from her submarine quest.

Then all went aboard the Dolphin.

Frank showed Captain Uriah over the boat, explaining to him its mechanism.

The old captain was more than interested. He was dazed.

“Well, well!” he exclaimed in a dreamy way, “I can hardly realize it all! It seems as if I must be in some other part of the world. I cannot understand it.”