old Spanish sailor who had spent much of his time in Cuban and Porto Rican waters. I did this fellow several favors, and in return for this he told me of a treasure said to be hidden away in one of the great caves of Porto Rico, which are located to the southwest of Caguas, and five miles west of the village of Aguas Buenas."
"And what was the treasure?" cried Leander, who sat by, his mouth half open in wonder.
"It was a treasure in Spanish gold, said to have been placed in the cavern by a smuggler, who had journeyed inland after he had found the coast of Porto Rico too hot to hold him. It was said to be locked up in a strong cedar chest, and buried under a long, flat stone upon which was cut a cross and the initials M. M. M."
"That ought to be easy to find—if you can locate the cave," said Bob.
"Exactly—if I can locate the cave. But you must remember that, although the caves of Porto Rico are but little known, the largest of them, called the Dark Cave, is said to rival your own Mammoth Cave of Kentucky."
"Gracious! If it's as big as that, then that's another question," returned Bob, and his face fell, for he was already thinking of taking a hand at treasure-hunting himself.
"I have some fairly good directions as to how to reach the cave," went on Robert Menden.
