I knew not what to think, when a voice near me said:
“Is that you, Professor?”
“Ah! Captain,” I answered, “where are we?”
“Underground, sir.”
“Underground!” I exclaimed. “And the Nautilus floating still?”
“It always floats.”
“But I do not understand.”
“Wait a few minutes, our lantern will be lit, and, if you like light places, you will be satisfied.”
I stood on the platform and waited. The darkness was so complete that I could not even see Captain Nemo; but, looking to the zenith, exactly above my head, I seemed to catch an undecided gleam, a kind of twilight filling a circular hole. At this instant the lantern was lit, and its vividness dispelled the faint light. I closed my dazzled eyes for an instant, and then looked again. The Nautilus was stationary, floating near a mountain which formed a sort of quay. The lake, then, supporting it was a lake imprisoned by a circle of walls, measuring two miles in diameter and six in circumference. Its level (the manometer showed) could only be the same as the outside level, for there must necessarily be a communication between the lake and the sea. The high partitions, leaning forward on their base, grew into a vaulted roof bearing the shape of an immense funnel turned upside down, the height being about five or six hundred yards. At the summit was a circular orifice, by which I had caught the slight gleam of light, evidently daylight.
“Where are we?” I asked.