Milton then wrote a short note, which recorded little more than our names, the date of our great discovery and that we were going farther. This, carefully folded, he placed beside the creepers and put a rock-fragment upon it. I wondered as I watched him whose would be the eyes that would discover it. Some inhabitant of this underground world, of course, and to such a one the record would be so much Greek. 'Twas utterly unlikely that any one from the world which we were leaving would ever see that record. "And now, Bill," said Milton Rhodes, "down we go!" And the next moment we were going--had begun our descent into this most mysterious and dreadful place. Chapter 16 "ARE WE ENTERING DANTE'S INFERNO ITSELF?" When Scranton came with his weird story of Old He, I was, I confess, not a little puzzled by his and Milton's reference to the extraordinary scientific possibilities that it presented. At first I could not imagine what on earth they meant. But I saw all those possibilities very clearly now, and a thousand more I imagined. I knew a wild joy, exultation, and yet at the same time the wonder and the mystery of it all made me humble and sober of spirit. I admit, too, that a fear--a fear for which I can find no adequate name--had laid its palsied and cold fingers upon me. In a few moments we reached that spot where the angel had vanished. There we paused in curiosity, looking about; but nothing was to be seen. The gallery--which from this point swung sharp to the right and went down at a rather steep angle--was as silent as some interstellar void. "Bill," smiled Milton Rhodes, "he is idle who might be better employed." And he started on, or, rather, down. A hundred feet, however--we were now under the glacier--and he halted, turned his light full upon the left-hand wall, pointed and said: "There you are, Bill--the writing on the wall." I pressed to his side and stood staring. The rock there was as smooth, almost, as a blackboard; and upon it, traced in white chalk, were three inscriptions, with what we took to be names appended to them. That on the right was clearly a very recent one--had been placed there doubtless, at the most but a few days since, by that "cavernicolous Venus" that Milton Rhodes had seen for so fleeting a moment. It was Milton's opinion that the characters were alphabetical ones, though at first I was at a loss to understand how they could be anything to him but an utter mystery. The letters were formed by straight lines only. The simplest character was exactly like a plain capital T, with, that is, the vertical line somewhat elongated. And it was made to perform the office of another letter by the simple expedient of standing it upon its head. The number of cross-lines increased up to six, three at the top and three at the bottom; and in one or two characters there were two vertical lines, placed close together.