never have known the tread of human feet, so far as one might know by the look of it. Powdered snow lay undisturbed in the deep crannies, and daylight did not penetrate very far into the forbidding dark beyond. Smith drew his gun, took a deep breath and plunged into the blackness and the cold, with Yarol at his heels.
It was like leaving everything human and alive for some frosty limbo that had never known life. The cold struck sharply through their leather garments. They took out their Tomlinson tubes before they had gone more than twenty paces, and the twin beams illumined a scene of utter desolation, more dead than death, for it seemed never to have known life.-
For perhaps fifteen minutes they stumbled through the cold dark. Smith kept his beam focused on the floor beneath them; Yarol's roved the walls and pierced the blackness ahead.
Rough walls and ragged ceiling and teeth of broken stone projecting from the floor to slash at their boots — no sound but their footsteps, nothing but the dark and the frost and the silence.
Then Yarol said, “It's foggy in here,” and something clouded the clear beams of the lights for an instant; then darkness folded round them as suddenly and completely as the folds of a cloak.
Smith stopped dead-still, tense and listening. No sound. He felt the lens of his light-tube and knew that it still burned — it was warm, and the faint vibration under the glass told him that the tubes still functioned. But something intangible and strange blotted it out at the source . . .
a thick, stifling blackness that seemed to muffle their senses. It was like a bandage over the eyes — Smith, holding the burning light-lens to his eyes, could not detect even its outline in that all-cloaking dark.
For perhaps five minutes that dead blackness held them. Vaguely they knew what to expect, but when it came, the shock of it took their breath away. There was no sound, but quite suddenly around a bend of the cavern came a figure of utter whiteness, seen at first fragmentarily through a screen of rock-toothed jags, then floating full into view against the background of the dark. Smith thought he had never seen whiteness before until his incredulous eyes beheld this creature — if creature it could be. Somehow he thought it must be partly below the level of the floor along which it moved; for though in that blind black he had no way of gauging elevation, it seemed to him that the apparition, moving with an effortless glide, advanced unopposed through the solid rock of the floor. And it was whiter than anything living or dead had ever been before — so white that it sickened him, somehow, and the flesh crept along his spine. Like a cut-out figure of paper, it blazed against the flat black beyond. The dark did not affect it, no shadows lay upon its surface; in two arbitrary dimensions only, blind white superimposed upon blind dark, it floated toward them. And it was tall, and somehow man-formed, but of no shape that words could describe.
Smith heard Yarol catch his breath in a gasp behind him. He heard no other sound, though the whiteness floated swiftly forward through the rocky floor. He was sure of that now — a part of it extended farther down than his feet, and they were planted upon solid rock. And though his skin crawled with unreasoning terror, and the hair on his neck prickled with the weird, impossible approach of the impossible thing, he kept his head enough to see that it was apparently solid, yet somehow milkily translucent; that it had form and depth, though no shadows of that darkness lay upon it; that from where no face should have been a blind, eyeless visage fronted him impassively. It was very close now, and though the extremities of it trailed below the floor line, its height lifted far above his head.
And a nameless, blind force beat out from it and assailed him, a force that somehow seemed to be driving him into unnamable things — an urge to madness, beating at his brain with the