but I had to be cautious, for if I made a mistake in the course I should lose my way. The roof and the walls of the gallery were not enough to guide me; on the ground there was a surer guide, the rails. If I followed them I should be sure to find the ladders. From time to time I let my feet go down and, having touched the iron rails, I rose up again, gently. With the voices of my companions behind me and the rails under my feet, I was not lost. As the voices became less distinct, the noise of the pumps increased. I was advancing. Thank God, I should soon see the light of day!
Going straight down the middle of the gallery, I had only to turn to the right to touch the rail. I went on a little farther, then dived again to touch the rail. It was not there! I went from side to side of the gallery, but there was no rail!
I had made a mistake.
The voices of my companions only reached me in the faintest murmur. I took in a deep breath, then plunged again but with no more success. There were no rails!
I had taken the wrong level; without knowing, I must have turned back. But how was it the others were not shouting. If they were I could not hear them. I was distracted, for I did not know which way to turn in this cold, black water.
Then, suddenly, I heard the sounds of voices again and I knew which way to turn. After having taken a dozen strokes back, I turned to the right, then to the left, but only found the walls.