Xxvii.

WE LEAP

We passed through the caves without trouble, but when we came to the slope of the inverted cone two difficulties stared us in the face. The first of these was the laborious nature of the ascent, and the next the extreme difficulty of finding our way. Indeed, had it not been for the mental notes that I had fortunately taken of the shape of various rocks, I am sure that we never should have managed it at all, but have wandered about in the dreadful womb of the volcano—for I suppose it must once have been something of the sort—until