Tom's instrument set up a soft purring at his touch of a lever, and eery blue light flickered from behind the double eyepiece, casting grotesque shadows on walls and ceiling, and paling to insignificance the light of day that filtered through the long-unwashed windows.
Bert squinted through the hooded twin lenses. At first he was dazzled and confused by the rapidly whirling light-images, but these quickly resolved into geometric figures, an inconceivable number of them, extending off into limitless space in a huge arc, revolving and tumbling like the colored particles in an old-fashioned kaleidoscope. Cubes, pyramids and cones of variegated hues. Swift-rushing spheres and long slim cylinders of brilliant blue-white; gleaming disks of polished jet, spinning....
Abruptly the view stabilized, and clear-cut stationary objects sprang into being. An unbroken vista of seamed chalky cliffs beside an inky sea whose waters rose and fell rhythmically yet did not break against the towering palisade. Wave-less, glass-smooth, these waters. A huge blood-red sun hanging low in a leaden though cloudless sky, reflecting scintillating flecks of gold and purple brilliance from the ocean's black surface.
At first there was no sign of life to be seen. Then a mound was rising up from the sea near the cliff, a huge tortoiselike shape that stretched forth several flat members which adhered to the vertical white wall is if held by suction disks. Ponderously the thing turned over and headed up from the inky depths, spewing out from its concave under side an army of furry brown bipeds. Creatures with bloated torsos in which head and body merged so closely as to be indistinguishable one from the other, balanced precariously on two spindly legs, and with long thin arms like tentacles, waving and coiling. Spiderlike beings ran out over the smooth dark surface of the sea as if it were solid ground.
"Jupiter!" Bert looked up from the eyepiece, blinking into the triumphant grinning face of Tom Parker. "You mean to tell me these creatures are real?" he demanded. "Living here, all around us, in another plane where we can't see them without this machine of yours?"
"Surest thing. And this is but one of many such planes."
"They can't get through, to our plane?"
"Lord no, man, how could they?"
A sharp crackling peal of thunder rang out overhead and Tom Parker went suddenly white. Outside, the sky was cloudless.