Our scientist friend seemed to understand the information which Dr. Johnston was seeking, for his answer was, "what you Earth men have now is very dangerous to work with, for you really haven't got anything except wild, uncontrolled power. Your job is taming this power down so that it will not be injurious to anyone. You will have to get another element to do this with, as we have done. Then you will be able to use it so well that even a child can handle it without any harm. You have some of that element on Earth, but you have not yet found it. It is through the proper use of this power that the dwellings on the dark moon are being heated." "Of course there is a light side to this dark moon, also. Had the ship taken off twelve hours earlier, you would have seen it land on the light side. There is a landing field on both sides of this Moon at which the Martonian freighters stop on each trip. Since this is the dark side we are viewing, you will not be able to see the ship land on the other side where it will go when it leaves from where you now see it." While he was yet talking, we saw the ship take off and instead of going into space towards Mars, it looked as if he climbed from the bottom to the top of the circle and over it to the other side. As it went over the horizon, it was much like a sun setting, and it vanished. "Now he is on the light side for he took supplies with him from here to the people there," was the comment. As if in answer, the pilot of the ship spoke to us at the observatory telling us that he knew we had kept watching him, for he too had his screen on all the time beamed to this Moon. He said that the side he is on now has a temperature at present of about thirty degrees. The inhabitants there are just beginning their day's activities. These people are not as active as those living on the Moon they had just left. They are a slow moving people on that side of this other moon. His ship is nearly unloaded by now and they are about ready to take off again, since there is not much of interest at all on this moon. He adds that the people on the light side of that moon had been transported there some five hundred years before, while the people on the dark side are originals. "Where did they come from," questioned Dr. Johnston, in surprise.