At the bottom they picked themselves up and started on again. Both walked more gingerly now, and Jak limped a bit from a twisted ankle. Yet they were so eager to see what this strange movement might be, they soon forgot their bruises and hurried once more.

It was a good half mile across the valley floor to their destination. But there, sure enough, they found life!

Strange, unearthly life it was, but they soon discovered that it had reproduction, growth and movement—the three main criteria of life-forms.

"Crystalline, by golly!" Jon yelled.

Jak was squatting beside the growing thing. It was somewhat pyramidal, yet the sides were not smooth. Rather, they were many-faceted, like the pieces of rock crystal with which the boys were familiar. It was a grayish-white color—with just enough of the gray in it so it had been visible from a distance, against the white background. But now, as the boys were on the sunward side of one of the pyramids, for there were many of them about, they could see that the light reflected from it was kaleidoscopic coloration at times.

Jak reached out a gloved hand and rapped on the pyramid ... and it gave forth a tinkling sound, then collapsed into a thousand tiny shards.

"You ... you broke it."

"Yes, I'm sorry. I didn't mean to kill it. Had no idea it was so fragile." Jak rose, moved over to another pyramid, and squatted beside it, examining it closely, but careful not to touch it. Jon sank onto his heels beside him.

For a few seconds as they watched there was no change. But suddenly they heard a small, clear ping, and a new crystal sprang into existence near the base. Almost at once there was a repetition of the sound and another appeared further up on the adjoining side of the structure—or creature. As the boys continued watching this was repeated over and over—with each tiny sound a new facet came into being somewhere on the pyramid. Before their very eyes the crystal-being was growing.

"Boy, that's something!" Jon exclaimed admiringly.