“Trust me for that, skipper, I could never fail to locate it. I hope the water is out of it?”

“Why?”

“We could then easily follow the basin’s course and find the gold.”

“I can see. Well, keep a sharp outlook when we reach the Andes. I shall strike across the Caribbean Sea for the mountains of Peru.”

“Good! I feel sure of success!”

The air-ship swept on southward. In due time the coast of Cuba hove into view.

Upon its western end was Cape San Antonio. Frank passed directly over this and entered upon the Caribbean Sea.

It was evident now that they were well into the tropics. The air was balmy and the sea limpid and still.

When the coast of Colombia came into view the exciting period seemed to have been reached. Beyond all knew that the land of wild adventure lay.

On sailed the Spectre.