, who was in advance as before, uttered a cry of surprise:

"A trail! I wonder where it leads to?"

He was right, a well defined trail or footpath lay before them,
running between the brushwood and palms and around the rocks. It did
not look as if it had been used lately, but it was tolerably clear of
any growth.

This was something the Rover boys had not counted on, for Bahama Bill
had never spoken of any trail in his descriptions of the isle. They
gazed at the path with curiosity. Tom was the first to speak.

"Shall we follow it?" he asked.

"Might as well," answered Sam. "It's better than scratching yourself
and tearing your clothing in those thorn bushes."

The boys took to the trail and passed along for a distance of quarter
of a mile or more. It wound in and out around the rocks and trees and
had evidently been made by some natives bringing out wild fruits and
the like from the forest.

"It doesn't seem to be leading us to anywhere," was Dick's comment. "I
don't know whether to go on or not."

Nevertheless, they kept on, until they came to a sharp turn around a
series of rocks. As they, moved ahead they suddenly saw a glare of
light cross the rocks and then disappear.

"What was that?" asked Sam, somewhat startled.

"A light," answered Dick.

"I know. But where did it come from?"

"It was like the flash of a bicycle gas lamp," said Tom.

"There are no bicycles on this trail," said Dick.

"I know that, too, Dick. But it was like that kind of a lamp."

Just then the flash of light reappeared, and now they saw it came from
a point on the trail ahead of them. They listened intently and heard
somebody approaching.

"Several men are coming!" whispered Dick.

"Not from our yacht?" said Tom.

"I don't think so."

"Can they be from the _Josephine_?" asked Sam.

"That remains to be seen."

"If they are from the _Josephine_ what shall we do?"

"I think the best thing we can do is to keep out of sight and watch
them."

"But they may locate the cave and take the treasure away," said Tom.

"We have got to run that risk unless we want to fight them."

"Oh, if only we could get our crowd here to help us!" murmured Sam.

"We may be mistaken and they may be strangers to us. Come, let us
hide."

Losing no time, the three Rover boys stepped into the bushes beside
the trail. As they did so the other party came closer, and the lads
saw that they carried not only an acetylene gas lamp, but also a
ship