So on that day of the spring before last, Union 5-3992 were stricken with convulsions on the edge of the City, near the City Theatre. We left them to lie in the shade of the Theatre tent and we went with International 4-8818 to finish our work. We came together to the great ravine behind the Theatre. It is empty save for trees and weeds. Beyond the ravine there is a plain, and beyond the plain there lies the Uncharted Forest, about which men must not think. We were gathering the papers and the rags which the wind had blown from the Theatre, when we saw an iron bar among the weeds. It was old and rusted by [-man-] {+many+} rains. We pulled with all our strength, but we could not move it. So we called International [-4-8818,-] {+4-8818+} and together we scraped the earth around the bar. Of a sudden the earth fell in before us, and we saw an old iron grill over a black hole. International 4-8818 stepped back. But we pulled at the grill and it gave way. And then we saw iron rings as steps leading down a shaft into a darkness without bottom. "We shall go down," we said to International 4-8818. "It is forbidden," they answered. We said: "The Council does not know of this hole, so it cannot be forbidden." And they answered: "Since the Council does not know of this hole, there can be no law permitting to enter it. And everything which is not permitted by law is forbidden." But we said: "We shall go, none the less." They were frightened, but they stood by and watched us go. We hung on the iron rings with our hands and {+our+} feet. We could see nothing below us. And above us the hole [-open-] upon the sky grew smaller and smaller, till it came to be the size of a button. But still we went down. Then our foot touched the ground. We rubbed our eyes, for we could not see. Then our eyes became used to the darkness, [-but-] {+and+} we could not believe what we saw. No [-men-] {+man+} known to us could have built this place, nor the men known to our brothers who lived before us, and yet it was built by men. It was a great tunnel. Its walls were hard and smooth to the touch; it felt like stone, but it was not stone. On the ground there were long thin tracks of iron, but it was not iron; it felt smooth and cold as glass. We knelt, and we crawled forward, our hand groping along the iron line to see where it would lead. But there was an unbroken night ahead. Only the iron tracks glowed through it, straight and white, calling us to follow. But we could not follow, for we were losing the puddle of light behind us. So we turned and we crawled back, our hand on the iron line. And our heart beat in our fingertips, without reason. And then we knew.