That night both Dick and Danny slept soundly and in the morning felt once more like themselves. It was resolved that in the future, if it was possible to do so, the whole party should keep together.

"And one man must remain on guard constantly," added Robert Menden. "If not, Joseph Farvel may treat us to a disagreeable surprise."

The party had, the day before, explored a small cave but a short distance from the river. It was now decided to let Remora take them to the great Dark Cave.

The path was a winding, tortuous one, and they had to proceed with great care, especially as all wanted to avoid even the semblance of another mishap.

It was clear, and from one point where they stopped to take a rest they could see for miles. Far away to the north they beheld the church spires of San Juan, and beyond the rolling sea, shining brightly in the sunlight. On all sides were the rolling hills and sharp-backed mountains, clothed in living green of all shades.

"What an immense island for stock raising!" murmured Leander. "A fellow could have thousands of heads of cattle here. Just look at the thickness of the grass."

"This land will all be given over to coffee and sugar plantations in time," said Robert Menden. "Nine people out of ten care to raise nothing else."

They were resting under a big calabash tree laden with green fruit. Now they resumed their journey, through brush and stubble, for the trail had gradually scattered and been lost.

At last they approached a cliff all of two hundred feet in height. Before the cliff were great piles of rocks, overgrown with vines and gray moss. Behind one mass of rocks was a yawning hole not over six feet square.

"Dat is one of de doors to de Dark Cave," announced Carlos Remora. "Now we light torch, please you;" and they halted while he fired up. The torch was a stick several feet in length and smeared over with a sticky gum. Carlos carried several, and all of the others had at least one apiece, tied over his shoulder, and all carried a goodly supply of matches in addition.