Around him loomed the fragments of what must have been a city, now reduced to a few columns and crumbling walls held up by the lava which had flowed. The stones reared high in the unreal moonlight, seeming almost to move as the shadows and the drifting sand passed them. Ghost city. Ghost planet. He was the last life that stirred on its bleak surface. But somewhere above that surface-- What was it, that descending hum high in the sky, sweeping closer out of stars and moon and wind? Minutes ago the needle on his gravitomagnetic detector had wavered down in the depths of the pyramid. He had hurried up and now stood looking and listening and feeling his heart turn stiff. _No, no, no--not a Janyard ship, not now--it was the end of everything if they came._ Laird cursed with a hopeless fury. The wind caught his mouthings and blew them away with the scudding sand, buried them under the everlasting silence of the valley. His eyes traveled to his sneakboat. It was invisible against the great pyramid--he'd taken that much precaution, shoveling a low grave of sand over it--but, if they used metal detectors that was valueless. He was fast, yes, but almost unarmed; they could easily follow his trail down into the labyrinth and locate the vault. Lord if he had led them here--if his planning and striving had only resulted in giving the enemy the weapon which would destroy Earth-- His hand closed about the butt of his blaster. Silly weapon, stupid popgun--what could he do? Decision came. With a curse, he whirled and ran back into the pyramid. His flash lit the endless downward passages with a dim bobbing radiance, and the shadows swept above and behind and marched beside, the shadows of a million years closing in to smother him. His boots slammed against the stone floor, _thud-thud-thud_--the echoes caught the rhythm and rolled it boomingly ahead of him. A primitive terror rose to drown his dismay; he was going down into the grave of a thousand millennia, the grave of the gods, and it took all the nerve he had to keep running and never look back. He didn't dare look back. Down and down and down, past this winding tunnel, along this ramp, through this passageway into the guts of the planet. A man could get lost here. A man could wander in the cold and the dark and the echoes till he died. It had taken him weeks to find his way into the great vault, and only the clues given by Murchison's reports had made it possible at all. Now-- * * * * * He burst into a narrow antechamber. The door he had blasted open leaned drunkenly against a well of night. It was fifty feet high, that door. He fled past it like an ant and came into the pyramid storehouse.