Thus running he came at last out of the passage to an open room or space so wide that, look which way he would, he could see no end to it.  The stone roof of this place was held up by huge stone pillars standing scattered about like groups of great rough-barked trees, many times bigger round than hogsheads.  Here and there in the roof, or the stone overhead, were immense black caverns which almost frightened him to gaze up at them, they were so vast and black.  And no light or sun or moon came down into that deep part of the earth:  the light was from big fires, and they were fires of smithies burning all about him, sending up great flames and clouds of black smoke, which rose and floated upwards through those big black caverns in the roof.  Crowds of people were gathered around the smithies, all very busy heating metal and hammering on anvils like blacksmiths.  Never had he seen so many people, nor ever had he seen such busy men as these, rushing about here and there shouting and colliding with one another, bringing and carrying huge loads in baskets on their backs, and altogether the sight of them, and the racket and the smoke and dust, and the blazing fires, was almost too much for Martin; and for a moment or two he was tempted to turn and run back into the passage through which he had come.  But the strangeness of it all kept him there, and then he began to look more closely at the people, for these were the little men that live under the earth, and they were unlike anything he had seen on its surface.  They were very stout, strong-looking little men, dressed in coarse dark clothes, covered with dust and grime, and they had dark faces, and long hair, and rough, unkempt beards; they had very long arms and big hands, like baboons, and there was not one among them who looked taller than Martin himself.  After looking at them he did not feel at all afraid of them; he only wanted very much to know who they were, and what they were doing, and why they were so excited and noisy over their work.  So he thrust himself among them, going to the smithies where they were in crowds, and peering curiously at them.  Then he began to notice that his coming among them created a great commotion, for no sooner would he appear than all work would be instantly suspended; down would go their baskets and loads of wood, their hammers and implements of all kinds, and they would stare and point at him, all jabbering together, so that the noise was as if a thousand cockatoos and parrots and paroquets were all screaming at once.  What it was all about he could not tell, as he could not make out what they said; he could only see, and plainly enough, that his presence astonished and upset them, for as he went about among them they fell back before him, crowding together, and all staring and pointing at him.