It was not their notion simply to set it up on the face of the moon; such an arrangement would have been alternately too hot and then too cold. Instead it was to be the frame for a sort of tailor-made cave.
They found a place near the crest, between two pinnacles of rock with a fairly level floor between and of about the right size. The top of one of the crags was easily accessible and had a clear view of earth for line-of-sight, beamed transmission. There being no atmosphere, Art did not have to worry about horizon effects; the waves would go where he headed them. Having settled on the location, they returned for tools and supplies.
Cargraves and Ross did most of the building of the Dog House. It would not have been fair to Art to require him to help; he was already suffering agonies of indecision through a desire to spend all his time taking pictures and an equally strong desire to get his set assembled with which he hoped to raise earth. Morrie, at Cargraves' request, stayed on light duty for a few days, cooking, working on his navigation, and refraining from the strain of space-suit work.
The low gravitational pull made light work of moving the building sections, other materials, and tools to the spot. Each could carry over five hundred pounds, earth-weight, of the total each trip, except on the steeper portions of the trail where sheer bulk and clumsiness required them to split the loads.
First they shoveled the sandy soil about in the space between the two rocks until the ground was level enough to receive the metal floor, then they assembled the little building in place. The work went fast; wrenches alone were needed for this and the metal seemed light as cardboard. When that was done, they installed the "door," a steel drum, barrel-sized, with an air-tight gasketed head on each end.
Once the door was in place they proceeded to shovel many earth-tons of lunar soil down on top of the roof, until the space between the rock walls was filled, some three feet higher than the roof of the structure. When they were finished, nothing showed of the Dog House but the igloo-style door, sticking out between the rocky spires. The loose soil of Luna, itself a poor conductor of heat, and the vacuum spaces in it, would be their insulation.
But it was not yet air-tight. They installed portable, temporary lights, then dragged in sealed canisters and flat bales. From the canisters came sticky, tacky sheets of a rubbery plastic. This they hung like wallpaper, working as rapidly as possible in order to finish before the volatiles boiled out of the plastic. They covered ceiling, walls and floor, then from the bales they removed aluminum foil, shiny as mirrors, and slapped it on top of the plastic, all except the floor, which was covered with heavier duraluminum sheets.
It was ready for a pressure test. There were a few leaks to patch and they were ready to move in. The whole job had taken less than two ‘days'.
The Dog House was to be Art's radio shack, but that was not all. It was to be also a storeroom for everything they could possibly spare from the ship, everything not necessary to the brief trip back. The cargo space would then be made available for specimens to take back to earth, even if the specimens were no more than country rock, lunar style.
But to Cargraves and to the three it was more than a storeroom, more than a radio shack. They were moving their personal gear into it, installing the hydroponic tank for the rhubarb plants to make the atmosphere self-refreshing, fitting it out as completely as possible for permanent residence.
To them it was a symbol of man's colonization of this planet, his intention to remain permanently, to fit it to his needs, and wrest a living from it.
Even though circumstances required them to leave it behind them in a few days, they were declaring it to be their new home, they were hanging up their hats.
They celebrated the completion of it with a ceremony which Cargraves had deliberately delayed until the Dog House was complete. Standing in a semicircle in front of the little door, they were addressed by Cargraves:
"As commander of this expedition, duly authorized by a commission of the United Nations and proceeding in a vessel of United States registry, I take possession of this planet as a colony, on behalf of the United Nations of earth in accordance with the laws thereof and the laws of the United States. Run ‘em up, Ross!"
On a short and slender staff the banner of the United Nations and the flag of the United States whipped to the top. No breeze disturbed them in that airless waste—but Ross had taken the forethought to stiffen the upper edges of each with wire; they showed their colors.
Cargraves found himself gulping as he watched the flag and banner hoisted. Privately he thought of this little hole in the ground as the first building of Luna City. He imagined that in a year or so there would be dozens of such cave dwellings, larger and better equipped, clustered around this spot. In them would live prospectors, scientists, and tough construction workers. Workers who would be busy building the permanent Luna City down under the floor of the crater, while other workers installed a great rocket port up on the surface.
Nearby would be the beginnings of the Cargraves Physical Laboratory, the Galileo Lunar Observatory.
He found that tears were trickling down his cheeks; he tried futilely to wipe them away through his helmet. He caught Ross's eye and was embarrassed. "Well, sports," he said with forced heartiness, "let's get to work. Funny," he added, looking at Ross, "what effect a few little symbols can have on a man."
Ross looked from Cargraves to the bits of gay bunting. "I don't know," he said slowly. "A man isn't a collection of chemical reactions; he is a collection of ideas."
Cargraves stared. His "boys" were growing up!
"When do we start exploring?" Morrie wanted to know. "Any reason why we shouldn't get going, now that the Dog House is finished?"
"Before long, I think," Cargraves answered uncomfortably. He had been stalling Morrie's impatience for the last couple of days; Morrie was definitely disappointed that the rocket ship was not to be used, as originally planned, for point to point exploration. He felt confident that he could repeat his remarkable performance in making the first landing.
Cargraves, on the other hand, was convinced that a series of such landings would eventually result in a crash, leaving them marooned to starve or suffocate even if they were not killed in the crash. Consequently he had not budged from his decision to limit exploradon to trips on foot, trips which could not be more than a few hours in duration.
"Let's see how Art is getting on," he suggested. "I don't want to leave him behind—he'll want to take pictures. On the other hand, he needs to get on with his radio work. Maybe we can rally around and furnish him with some extra hands."
"Okay." They crawled through the air lock and entered the Dog House. Art and Ross had already gone inside.
"Art," Cargraves inquired when he had taken off his clumsy suit, "how long will it be until you are ready to try out your Earth sender?"
"Well, I don't know, Uncle. I never did think we could get through with the equipment we've got. If we had been able to carry the stuff I wanted-"
"You mean if we had been able to afford it," put in Ross. "Well... anyhow, I've got another idea. This place is an electronics man's dream—all that vacuum! I'm going to try to gimmick up some really big power tubes—only they won't be tubes. I can just mount the elements out in the open without having to bother with glass. It's the easiest way to do experimental tube design anybody ever heard of."
"But even so," Morrie pointed out, "that could go on indefinitely. Doc, you've got us scheduled to leave in less than ten earth-days. Feel like stretching the stay?" he added hopefully.