Decidedly the Professor was not given to contemplation. For my part, I could for another hour or two have forgotten my hunger and my fatigue to enjoy the lovely scene before me; but I had to follow my companions.

The slope of the volcano was in many places of great steepness. We slid down screes of ashes, carefully avoiding the lava streams which glided sluggishly by us like fiery serpents. As we went I chattered and asked all sorts of questions as to our whereabouts, for I was too much excited not to talk a great deal.

"We are in Asia," I cried, "on the coasts of India, in the Malay Islands, or in Oceania. We have passed through half the globe, and come out nearly at the antipodes."

"But the compass?" said my uncle.

"Ay, the compass!" I said, greatly puzzled. "According to the compass we have gone northward."

"Has it lied?"

"Surely not. Could it lie?"

"Unless, indeed, this is the North Pole!"

"Oh, no, it is not the Pole; but—"

Well, here was something that baffled us completely. I could not tell what to say.