I climbed as far as the hatch. It was open. But instead of the broad daylight I was expecting, I found that I was surrounded by total darkness. Where were we? Had I been mistaken? Was it still night? No! Not one star was twinkling, and nighttime is never so utterly black.

I wasn’t sure what to think, when a voice said to me:

“Is that you, professor?”

“Ah, Captain Nemo!” I replied. “Where are we?”

“Underground, professor.”

“Underground!” I exclaimed. “And the Nautilus is still floating?”

“It always floats.”

“But I don’t understand!”

“Wait a little while. Our beacon is about to go on, and if you want some light on the subject, you’ll be satisfied.”

I set foot on the platform and waited. The darkness was so profound I couldn’t see even Captain Nemo. However, looking at the zenith directly overhead, I thought I caught sight of a feeble glimmer, a sort of twilight filtering through a circular hole. Just then the beacon suddenly went on, and its intense brightness made that hazy light vanish.