"So much data to record," he said. "There will be others who will follow us some day. Perhaps not during our lifetime, but they will come. These discoveries are mine; I must have the records for them.... And later I will make paper," he added as an afterthought; "there is papyrus growing in the lake." But on the whole, Kreiss kept strictly to himself. "He's a lone wolf," Chet told the others, "and now that he is bringing in those heavy loads of metals he is more exclusive than ever: won't let me into the back end of his cave." "Does he think we will steal his gold?" Harkness asked moodily. "What good is gold to us here?" "He may have gold," Chet informed him, "but he has something more valuable too. I saw some chunks that glowed in the dark. Rotten with radium, he told me. But even so, he is welcome to it: we can't use it. No, I don't think he suspects us of wanting his trophies; he's merely the kind that flocks by himself. He was having a wonderful time today pounding out some of his metals with a stone hammer; I heard him at it all day. He seems to have settled down in that cave for keeps." * * * * * Harkness threw another stick across the fire; its warmth was unneeded, but its dancing flames were cheering. "And that is something we must make up our minds about," he said slowly: "are we to stay here, or should we move on?" He dropped to the ground near where Diane was sitting, and took one of her hands in his. "Diane and I plan to 'set up housekeeping,'" he told Chet, and Chet saw him smile whimsically at the words. Housekeeping on the Dark Moon would be primitive indeed. "We are lacking in some of the customary features of a wedding; we seem to be just out of ministers or civil officials to tie the knot." "Elect me Mayor of Dianeville," Chet suggested with a grin, "and I'll marry you--if you think those formalities are necessary here." Diane broke in. "It's foolish of me, Chet, I know it; but don't laugh at me." He saw her lips tremble for an instant. "You see, we're so far away from--from everything, and it seems that that if Walter and I could just start our lives with a really and truly marriage--oh, I know it is foolish--" This time Chet interrupted. "After all you have been through, and after the bravery you've shown, I think you are entitled to a little 'foolishness.' And you _shall_ be married with as good a knot as any minister could tie: you see, that is one of the advantages of being a Master Pilot. My warrant permits me to perform a marriage service in any level above the surface of the Earth. A left-over from the time when ship's captains had the same right. And although we are grounded for keeps, if we are not above the surface of the Earth right now I don't know anything about altitudes. But," he added as if it were an afterthought, "my fee, although I hate to mention it, is five dollars." * * * * *