I looked back down the side we had just cleared. There the mountain rose only 700 to 800 feet above the plains; but on its far slope it crowned the receding bottom of this part of the Atlantic by a height twice that. My eyes scanned the distance and took in a vast area lit by intense flashes of light. In essence, this mountain was a volcano. Fifty feet below its peak, amid a shower of stones and slag, a wide crater vomited torrents of lava that were dispersed in fiery cascades into the heart of the liquid mass. So situated, this volcano was an immense torch that lit up the lower plains all the way to the horizon. As I said, this underwater crater spewed lava, but not flames. Flames need oxygen from the air and are unable to spread underwater; but a lava flow, which contains in itself the principle of its incandescence, can rise to a white heat, overpower the liquid element, and turn it into steam on contact. Swift currents swept away all this diffuse gas, and torrents of lava slid to the foot of the mountain, like the disgorgings of a Mt. Vesuvius over the city limits of a second Torre del Greco. In fact, there beneath my eyes was a town in ruins, demolished, overwhelmed, laid low, its roofs caved in, its temples pulled down, its arches dislocated, its columns stretching over the earth; in these ruins you could still detect the solid proportions of a sort of Tuscan architecture; farther off, the remains of a gigantic aqueduct; here, the caked heights of an acropolis along with the fluid forms of a Parthenon; there, the remnants of a wharf, as if some bygone port had long ago harbored merchant vessels and triple-tiered war galleys on the shores of some lost ocean; still farther off, long rows of collapsing walls, deserted thoroughfares, a whole Pompeii buried under the waters, which Captain Nemo had resurrected before my eyes! Where was I? Where was I? I had to find out at all cost, I wanted to speak, I wanted to rip off the copper sphere imprisoning my head. But Captain Nemo came over and stopped me with a gesture. Then, picking up a piece of chalky stone, he advanced to a black basaltic rock and scrawled this one word: ATLANTIS