I stopped short just as I was going to place my feet upon my uncle’s head.

“We are there,” he cried.

“Where?” said I, stepping near to him.

“At the bottom of the perpendicular chimney,” he answered.

“Is there no way farther?”

“Yes; there is a sort of passage which inclines to the right. We will see about that tomorrow. Let us have our supper, and go to sleep.”

The darkness was not yet complete. The provision case was opened; we refreshed ourselves, and went to sleep as well as we could upon a bed of stones and lava fragments.

When lying on my back, I opened my eyes and saw a bright sparkling point of light at the extremity of the gigantic tube 3,000 feet long, now a vast telescope.