“Yes,” I said, “it is a wonderful sight. Is it not, Ned?”

“Yes, confound it! Yes,” answered Ned Land, “it is superb! I am mad at being obliged to admit it. No one has ever seen anything like it; but the sight may cost us dear. And, if I must say all, I think we are seeing here things which God never intended man to see.”

Ned was right, it was too beautiful. Suddenly a cry from Conseil made me turn.

“What is it?” I asked.

“Shut your eyes, sir! Do not look, sir!” Saying which, Conseil clapped his hands over his eyes.

“But what is the matter, my boy?”

“I am dazzled, blinded.”

My eyes turned involuntarily towards the glass, but I could not stand the fire which seemed to devour them. I understood what had happened. The Nautilus had put on full speed. All the quiet lustre of the ice-walls was at once changed into flashes of lightning. The fire from these myriads of diamonds was blinding. It required some time to calm our troubled looks. At last the hands were taken down.

“Faith, I should never have believed it,” said Conseil.

It was then five in the morning; and at that moment a shock was felt at the bows of the Nautilus. I knew that its spur had struck a block of ice. It must have been a false manœuvre, for this submarine tunnel, obstructed by blocks, was not very easy navigation. I thought that Captain Nemo, by changing his course, would either turn these obstacles or else follow the windings of the tunnel. In any case, the road before us could not be entirely blocked. But, contrary to my expectations, the Nautilus took a decided retrograde motion.