Robin took the bit of meat, cut off a piece and held it out to the creature. The Moonman looked at it, then reached out a hand and took it. It smelled it, then tasted it, and, finding the taste to its liking, swiftly gobbled it down.
Robin ate some too, and this gesture seemed to reconcile the other. A fairly universal gesture, Robin thought. Only friends would share a meal. Probably would hold true anywhere in the universe.
Now Robin picked up the other's spear and examined it. Seeing this, the creature picked up one of Robin's sacks and also looked at it.
The sharp point of the spear was something that looked like glass but glistened far more, seemed sharper, harder, and heavier. Robin turned it over, and the realization struck him that this spearhead was a diamond, a single six-inch-long shard of diamond!
After the first shock of this discovery, Robin realized that he should have expected it. On such a volcanic world as the Moon had once been, there might well be lots of diamond in great masses. What could be easier to use for weapons and cutting edges than chunks broken from such masses. Such a chunk brought back to Earth might be worth an emperor's ransom—but who could think of such values here?
Getting the friendship of the Moonman proved to be easy after that first effort. For the creature made no further effort to escape, seemed itself to desire Robin's companionship. In fact, as it turned out, Robin would have had a hard time getting rid of it. It seemed anxious now to stay close to the Earthling, to share him with Cheeky.
The glass-skinned being had a language, for it soon began to jabber away at Robin in a high-pitched squeaky tongue. After a little experimentation, Robin was able to get it to repeat the name Robin, and in turn, he found out that the Glassie's own name was something nearly like Korree.
Korree was evidently a very primitive sort of savage in spite of his ability to speak. As Robin set out to re-cross this bubble and return to his own holdings, the creature wound in and out ahead of him, returning steadily to see if all was well. Korree had no clothes and no understanding of them. He had only his spear, which Robin had returned to him and he had apparently lost faith in that, the first time Robin used his bow and arrow on a yapping Moontiger.
The trip through the dark tunnels back to Robin's original bubble was comparatively easy, for no sooner did they get into the darkness than Korree's light organ began to glow brightly enough to render Robin's lantern dim. When they came to the cleft, Robin had to pick the Moonman up and jump with him, for Korree's muscles were built only for Moon gravity and that leap was beyond his normal ability.
Once back in what Robin now thought of as the safety of his original bubble, the two settled down to work together. Korree soon got the hang of the simple duties Robin gave him—feeding the rabbits, slaughtering, skinning, and tanning. They spent the time trying to learn each other's languages.