I think that he expected to reach us with a single snatch 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. God—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 mass 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 phosphorescence, 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."