We had been traveling some three or four hours when Glora suggested a rest. We were at the edge of a broad canyon. The wall towered several hundred feet above us; but a few moments before, we had jumped down it with a single leap!

The last pellet we had taken had ceased its action. We sat down to rest.

It was a wild, mountainous scene around us, deep with luminous gloom. We could barely see across the canyon to its distant cliff wall. The wall beside us had been smooth, but now it was broken and ridged. There were ravines in it, and dark holes resembling cave-mouths. One was near us.

Alan gazed at it apprehensively.

"I say, Glora, I don't like sitting here."

I had been telling her all we knew of Polter. She listened quietly, seldom interrupting me. Then she said:

"I understand. I tell you now about Polter as I have seen him."

She talked for five or ten minutes. I listened, amazed, awed by what she said.

But Alan's insistence interrupted her. "Come on, let's get out of here.

That tunnel-mouth, or cave, or whatever it is--"

"But we go in there," she protested. "A little tunnel. That is our way to travel. We are not far from my city now."

Perhaps Alan felt what once was called a hunch, a premonition, the presage of evil which I think comes strangely to us more often than we realize. Whatever it was, we had no time to act upon it. The tunnel-mouth which had caused Alan's apprehension was about a hundred feet away. It was a ten-foot, yawning hole in the cliff. Perhaps Alan sensed a movement in there. As I turned to look at it a great, hairy human arm came out of the opening! Then a shoulder! A head!

The giant figure of a man came squeezing through the hole on his hands and knees! He gathered himself, and as he stood erect, I saw that he was growing in size! Already he was twenty feet tall compared to us--a thick-set fellow, dressed in leather garments, his legs and arms heavily matted with black hair. He stood swaying, gazing around him. I stared up at his round bullet head, his villainous face.

He saw us! Stupid amazement struck him, then comprehension.

He let out a roar and came at us!

CHAPTER V

Glora shouted, "Into the tunnel! This way!" She held her wits and darted to one side, with Alan and me after her. We ran through a narrow pa.s.sage between two fifty-foot boulders which lay close together. Momentarily the giant was out of sight, but we could hear his heavy tread and panting breath. We emerged having pa.s.sed him. He was taller now. He seemed confused at our sudden scampering activity. He checked his forward rush, and ran around the twin boulders. But we had squeezed into a narrow ravine. He could not follow. He threw a rock. To us it was a boulder. It crashed behind us. To him, we were like scampering insects; he could not tell which way we were about to dart.

Alan panted, "Glora, does this lead out?"

The little ravine seemed to open fifty feet ahead of us. Alan stopped, seized a chunk of rock, flung it up. I saw the giant's face above us. He was kneeling to reach in. The rock hit him on the forehead--a pebble, but it stung him. His face rose away.

Again we emerged. The tunnel-mouth was near us. We reached it and flung ourselves into its ten-foot width just as the giant came lunging up. He was far larger than before. Looking back, I could see only the lower part of his legs blocked against the outer light.

"Glora! Alan, where are you?"

For a moment I did not see them. It was darker in this tunnel of broken rocky walls, and jagged arching roof than outside.

Then I heard Alan's voice: "George! Over here!"

They came running to me. For a moment we stood, undecided. My eyes were becoming accustomed to the gloom. The tunnel was illumined by a dim phosph.o.r.escence from the rocks. I saw Alan fumbling for his vials, but Glora stopped him.

"No. We are the right size."

We were about a hundred feet back from the opening. The giant's legs disappeared. But in a moment the round, light hole of the exit was obscured again. His head and shoulders! He was lying p.r.o.ne. His great arms came in. He hitched forward. The width of his expanding shoulders wedged.

I think that he expected to reach us with a single s.n.a.t.c.h of his tremendous arms. Or perhaps he was confused, or forgot his growth. He did not reach us. His shoulders stuck. Then suddenly he was trying to back out, but could not!

It was only a moment. We stood in the radiant gloom of the tunnel, confused and frightened. The giant's voice roared, reverberating around us. Anger. A note of fear. Finally stark terror. He heaved, but the rocks of the opening held solid. Then there was a crack, a gruesome rattling, splintering--his shoulder bones breaking. His whole gigantic body gave a last convulsive lunge, and he emitted a deafening shrill scream of agony.

I was aware of the tunnel-mouth breaking upward. Falling rocks--an avalanche, a cataclysm around us. Then light overhead.

The giant's crushed body lay motionless. A pile of boulders, rocks and loose metallic earth was strewn upon his head and torso, illumined by the outer light through a jagged rent where the cliff-face had fallen down.

We were unhurt, crouching back from the avalanche. The giant's mangled body was still expanding; shoving at the litter of loose rocks. In a moment it would again be too small for the broken cliff opening.

I found my wits. "Alan, we've got to get out of here. G.o.d--don't you see what's happening?"

But Glora restrained us. She realized that the effect of the drug the giant had taken was about at its end. The growth presently stopped. That huge noisome ma.s.s of pulp which once had been human shoulders no longer expanded.

I shoved Glora away. "Don't look!" I was shaking; my head was reeling.

Alan's face, painted by the phosph.o.r.escence, was ghastly.

Glora pulled at us. "This way! The tunnel is not too long. We go."

But the giant had drugs, and perhaps weapons. "Wait!" I urged. "You two wait here. I'll climb over him."

I told them why, and ran. I can only leave to the imagination that brief exploratory climb. The broken body seemed at least a hundred feet long; the mangled shoulders and chest filled the great torn hole in the cliff.

I climbed over the litter. Indescribable, horrible scene! A river of warm blood was flowing down the declivity outward....

I came back to Glora and Alan. Under my arm was a huge cylinder vial. It was black, the enlarging drug. I set it down. They stared at me in my bloodstained garments.

"George! You're--"

"His blood, not mine." I tried to smile. "Here's the drug he carried.

Evidently Polter was only sending him out because I found just the one drug."

"What'll we do with it?" Alan demanded. "Look at the size of it!"

"Destroy it," said Glora. "See, that is not difficult." She tugged at the huge stopper, and exposed a few of the pellets--to us as large as apples. "The air will soon spoil it."

We left it in the tunnel. I also had with me a great roll of paper which had been folded in the giant's belt, with the drug cylinder. We unrolled it, and hauled its folds to a spread some ten feet long. It was covered with a scrawled handwriting in pencil, but its giant characters seemed thick blurred strokes of charcoal. We could not read it; we were too close. Alan and Glora held it up against the tunnel wall. From a distance I could make it out. It was a note written in English, signed "Polter," evidently to one of his men.

It read:

_The two prisoners, kill them at once. That is better. It will be too dangerous to wait for my return. Put their bodies with their airplane.

Crash it a mile from my gate._

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!