And yet -- that writing. Man-made, surely, although its characters were unfamiliar save in their faint hinting at cuneiform shapes. Or could there, in a Paleozoic world, have been things with a written language who might have graven these cryptic wedges upon the quartz-enveloped disc he held? Or -- might a thing like this have fallen meteor-like out of space into the unformed rock of a still molten world? Could it --