“What a curious idea,” I answered; “and yet, considering the strange behavior of our sand bag, I don’t know but you are right. And I have only one suggestion to make; that is, that we start earthward at once and try the experiment. Let the investigations go. If there are any inhabitants here they will never miss us, since we haven’t made their acquaintance yet. Science or no science, I object to remaining any longer than necessary in this uncertainty in regard to our future. You know very well we couldn’t live long in this temperature and with nothing for our lungs but what comes through these horrid machines. And what good would come of our discoveries if we are never to get back to the earth again? I profess to have as much courage left as the ordinary mortal would have, but in the present circumstances I believe no one would blame us for wanting to settle this question at once.” “It would seem a trifle ridiculous,” said the doctor in reply to this harangue, “for us to return to our planet without any further effort to accomplish our errand. But I will not deny that I share something of your feeling, and I will start with you right away, on condition that you will return here if we find that I am correct in believing we can leave the moon at our pleasure.” “Agreed,” I cried, and we were soon on our way. So far we had been exposed to the sun and were almost scorched by the intensity of its rays. We had never experienced anything like such heat and would not have supposed the human body could endure it. But now, soon after we had started to find the place where the moon would let go of us, the sun set and, with scarcely a minute’s warning, we were plunged into darkness and cold. The darkness was relieved by the exceedingly brilliant appearance of the stars, the sky fairly blazing with them, but the cold was almost unendurable even for the few moments in which we were exposed to it. We secured our car as speedily as possible, climbed into it, and got a little warmth from our gas heater. These extremes of temperature convinced us that no life such as we were acquainted with could exist a great while on the moon. We found we could make no progress at all by night. We could only shut ourselves up and wait for the sun to come. In trying to keep warm we would work our air-condensers harder than usual, and the water thus produced we would freeze in little cakes, and have them to help mitigate the burning heat a short time the next day. The country through which we were traveling was made up of bold mountain peaks and deep ravines. There was no sign of vegetation and not even the soil for it to grow in, but everywhere only hard, metallic rock that showed unmistakably the action of fire.