外来的挑战(6)
He sat, watching the luminescence glow and fade, glow and fade, but steadily becoming dimmer. It came to him that two elements were necessary to produce the phenomenon. The electric ray itself, and his own fixed attention. His mind must travel along the ray, fix itself upon the cube’s heart, if its beat were to wax, until . . . what?
He felt a chill of spirit, as though from contact with some alien thing. It was alien, he knew it; not of this earth. Not of earth’s life. He conquered his shrinking, picked up the cube and took it into the tent. It was neither warm nor cold; except for its weight he would not have known he held it. He put it upon the table, keeping the torch turned from it; then stepped to the flap of the tent and closed it.
He went back to the table, drew up the camp chair, and turned the flash directly upon the cube, focusing it so far as he could upon its heart. He sent all his will, all his concentration, along it; focusing will and sight upon the disc as he had the light.
As though at command, the sapphire lightnings burned forth. They burst from the disc into the body of the crystal cube, then beat back, bathing the disc and the markings. Again these began to change, shifting, moving, advancing, and retreating in the blue gleaming. They were no longer cuneiform. They were things . . . objects.