An intense persuasion of presences, of unseen things about
us and near us, dominated our minds. What could they be? Where could they
be? Was this arid desolation, alternately frozen and scorched, only the
outer rind and mask of some subterranean world? And if so, what sort of
world? What sort of inhabitants might it not presently disgorge upon us?

And then, stabbing the aching stillness as vivid and sudden as an
unexpected thunderclap, came a clang and rattle as though great gates of
metal had suddenly been flung apart.

It arrested our steps. We stood gaping helplessly. Then Cavor stole
towards me.

"I do not understand!" he whispered close to my face. He waved his hand
vaguely skyward, the vague suggestion of still vaguer thoughts.

"A hiding-place! If anything came..."

I looked about us. I nodded my head in assent to him.

We started off, moving stealthily with the most exaggerated precautions
against noise. We went towards a thicket of scrub. A clangour like hammers
flung about a boiler hastened our steps. "We must crawl," whispered Cavor.

The lower leaves of the bayonet plants, already overshadowed by the newer
ones above, were beginning to wilt and shrivel so that we could thrust our
way in among the thickening stems without serious injury. A stab in the
face or arm we did not heed. At the heart of the thicket I stopped, and
stared panting into Cavor's face.

"Subterranean," he whispered. "Below."

"They may come out."

"We must find the sphere!"

"Yes," I said; "but how?"

"Crawl till we come to it."

"But if we don't?"

"Keep hidden. See what they are like."

"We will keep together," said I.

He thought. "Which way shall we go?"

"We must take our chance."

We peered this way and that. Then very circumspectly, we began to crawl
through the lower jungle, making, so far as we could judge, a circuit,
halting now at every waving fungus, at every sound, intent only on the
sphere from which we had so foolishly emerged. Ever and again from out of
the earth beneath us came concussions, beatings, strange, inexplicable,
mechanical sounds; and once, and then again, we thought we heard
something, a faint rattle and tumult, borne to us through the air. But
fearful as we were we dared essay no vantage-point to survey the crater.
For long we saw nothing of the beings whose sounds were so abundant and
insistent. But for the faintness of our hunger and the drying of our
throats that crawling would have