VI. THE GRUESOME FINDS IN THE CAVE

The cave. Taking the boat to explore the interior. The air pocket.
A board for charting the cave. The boat on the wagon. Entering the
cave. The lights. Returning for the boat. The peculiar noise at the
cave entrance. Methods for searching the cave. The domed chamber.
Making a circuit within it. The outlet. The second chamber. The
chalk icicles. Limestone. Volcanic action. Carbonic acid, and what
it produced. The caves of the world. What is learned in searching
caves. Their archaeological knowledge. A peculiar formation in the
large chamber. A platform within a recess. Skulls and skeletons.
Ancient weapons. Evidences of a terrible conflict. Musket balls.
Dirks and unknown forms of weapons. Singular copper receptacles.
Curiously wrought knives. Articles of furniture. Decayed clothing.
Kitchen utensils. Why the cave takes care of the smoke.

VII. THE TREASURES OF THE CAVE

The couch in the recess. Chests of gold. A pirates' lair. The
ancient coins. Peculiar articles of ornament. The lid with mocking
lock. Rings; bracelets. The buccaneers. The sermon. Ghastly relics.
A perceptible movement in the atmosphere. Startling supposition. A
possible outlet in the side of the hill. The slab of carbonate. The
writing on it. An accident and the finding of other skeletons. The
light shining into the cave. Discovery of the outlet. View of the
cataract from the opening in the hillside. The boat in the cave.
Taking it out by the hillside opening. The Professor's search.
Return of the boys with the team. Re-enter the cave. The Professor
lost. Hunting in the unknown passages. Return of the Professor.
Taking two of the skeletons to the laboratory.

VIII. REMOVING THE VESSELS FROM THE CAVERNS

Completion of the boat. Making a trial voyage. Rounding the cliffs.
Trip to the south. The forests and the mountains. On the south
coast. A raging storm. Seasickness and dizziness at great heights.
The calcareous slab from the cave. The letters on it. Photography.
Reagents. Photographic light. X-rays. Taking the copper vessels
from the cave. Gathering up the bones. Evidences of the strife.
Spanish inscriptions. Gold bullion. Silver ornaments and vessels.
Decayed chests. The coins. Peculiar guns. Non-effective powder.
Disappearance of Angel. Retu