Full directions for our death followed. And Polter said he would return by dawn or soon after.

That gave me a start. By dawn! We had been traveling four or five hours. It was already dawn up there now!

"No," Glora explained, "the time in here is different. A different time-rate. I do not know how much difference. My world speeds faster; yours is very slow. It is not the dawn up there quite yet."

Again my mind strove to encompass these things—so strange. A faster time-rate prevailed in here? Then our lives were passing more quickly. We were living, experiencing things, compressed into a shorter interval. It was not apparent: there was nothing to which comparison could be made. I recalled Alan's description of Polter—not thirty years old as he should have been, but nearer fifty. I could understand that, now. A day in here was equal to only a few hours on our gigantic world outside.

We walked the length of the tunnel. I suppose it was a quarter of a mile, to us in this size. It wound through the cliff with a steady downward slope. And suddenly I realized that we had turned downward nearly half the diameter of a circle! We had turned over—or at least it seemed so. But the gravity was the same. I had noticed from the beginning very little change.[Pg 47]

[Pg 47]

The realization of this tunnel brought a mental confusion. I lost all sense of direction. The outer world of Earth was under my feet, instead of overhead. Then we went level. I forgot the confusion: this was normality here. We turned upward a little. Cross tunnels intersected ours at intervals. I saw caverns, open, widened tunnels, as though this mountain were honeycombed.

"Look!" said Glora. "There is the way out. All these passages lead the same way."

There was a glow of light ahead. I recall that I was at that moment fumbling at my belt in two small compartments in which I was carrying the two vials of the drugs which Glora had given me. Alan wore the same sort of belt. We had found them in the wrecked dome-room. I heard a click on the ground at my feet. I was about to stoop to see what I had kicked—only a loose stone, perhaps—but Glora's words distracted me. I did not stoop. If only I had, how different events might have been!

The glow of light ahead of us widened as we approached, and presently we stood at the end of the tunnel. A spread of open distance was outside. We were on a ledge of 

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