"Nothing at all, Snap."
And Snap's instruments, attuned for an hour now to pick up the faintest signal, were motionless.
"If he has concentrated any appreciable amount of ore," said Snap. "We should get an impulse from its rays."
But our receiving shield was dark, untouched. Our mirror grid gave the magnified images; the spectro, with its wave length selection, pictured the mountain levels and slowly descended into the deepest seas.
There was nothing.
Yet in those Moon caverns—a million million recesses amid the crags of that tumbled, barren surface—the pin point of movement which might have been Grantline's expedition could so easily be hiding! Could he have the ore insulated, fearing its rays would betray its presence to hostile watchers?
Or might disaster have come to him? He might not be on this hemisphere of the Moon at all....
My imagination, sharpened by fancy of a lurking menace which seemed everywhere about the Planetara this voyage, ran rife with fears for Johnny Grantline. He had promised to communicate this voyage. It was now, or perhaps never.
Six-thirty came and passed. We were well beyond the Earth's shadow now. The firmament blazed with its vivid glories; the Sun behind us was a ball of yellow-red leaping flames. The Earth hung, a huge, dull red half sphere.
We were within forty thousand miles of the Moon. A giant white ball—all of its disc visible to the naked eye. It poised over the bow, and presently, as the Planetara swung upon its course for Mars, it shifted sidewise. The light of it glared white and dazzling in our windows.