I let myself down from the tilted doorway, hung by my hand and dropped.

I struck the ramp-like yielding surface of his shirt bosom. I slid, tumbling, scrambling, and landed softly in the huge folds of his trouser fabric. I was unhurt. The width of his belt, high as my body, was near me. I shrank against it. I found I could cling to its upper edge.

My hold came just in time. He shifted and sat up. I was lifted with a swoop of movement. When it steadied I saw above me the top of his knee.

His left leg was crooked, the foot drawn close to him. Babs was perched up there on the knee summit. His right leg was outstretched. I was at the right side of his belt. I could dart off along that curving expanse of his leg and leap to the ground. If he would hold this position! One of the pouches of his belt was near me. The vial in it was black. The enlarging drug! I moved toward it.

But Babs was too high to jump from that summit of his crooked knee! I think she saw me at his belt. I heard her voice.

"I cannot eat up here. It is too high. Oh, please be careful how you move! I am so dizzy, so frightened! You move with such great jerks!"

He had what seemed a huge surface of bread and meat. He was breaking off crumbs to put before her. I reached the pouch of his belt. The vial was as long as my body. I tugged to try and lift it out.

All the giant contours of Polter's body shifted as he cautiously moved.

I clung. I saw that Babs was being held gently between his thumb and forefinger. He lowered her to the ground, and she stood beside the bread and the meat he had placed there.

And she had the courage to laugh! "Why this--this is an enormous sandwich! You will have to break it."

He was leaning over her, half turned on his side. The vial came free. I shoved it; but I could not control its weight. I pushed desperately. It slid over the round brink of his right hip, and fell behind him. I heard the tinkling thud of it down on the rocks.

There was no alarm. I could not chance leaping from his hip. I scurried along the convex top of his outstretched leg, and beyond his knee I jumped.

I landed safely. I could see the black vial back across the broken rock surface, with the bulge of Polter's hip above it. I ran back and reached the vial, tugged at its huge stopper. The cork began to yield under my panting, desperate efforts. In a moment I would have a pellet of the enlarging drug; make away with it and startle Polter so that Babs might dart off and escape.

The huge stopper of the vial was larger than my head. It came suddenly out. I flung it away, plunged in my hand, and seized an enormous round pellet.

Then abruptly the alarm came, and I had not caused it! Polter ripped out a startled, rumbling curse and sat upright. Under the curve of his leg I saw Babs had been momentarily neglected. She was running.

Across the boulder-strewn plain, two tiny men had appeared. Polter had seen them.

They were the enlarging figures of Dr. Kent and Alan!

CHAPTER XI

The astounded Polter was taken wholly by surprise. He had no idea that anyone was following him. He thought he was alone with tiny Babs in this rock-strewn metal desert. What he saw as he scrambled to his feet were four insect-size humans, two of them at a distance, and two within reach of him, and all of them scampering in different directions. The ground was littered with crags and boulders; it was ridged and pitted, pock-marked, with tiny crater-holes and caves. The four scuttling figures almost instantly had disappeared from his sight.

I did not see where Babs went. I turned from the black vial of Polter's enlarging drug, and with the huge pellet under my arm I ran leaping over the rough ground and flung myself into a gully. I lay p.r.o.ne, flattened against a rock. In the murky distance of a pseudo-sky overhead, the monstrous head and shoulders of Polter were visible. I could see down to just below his waist. The empty cage with its door flapping open hung against his shirt-front. He had stooped to try and recover Babs. And instinctively his hands went to his belt to seize his enlarging drug.

They were fumbling there now. He hauled out an opalescent vial of the diminishing element. But his black vial was gone. His annoyance turned into fear as he searched for it in the other compartments of his belt. I had thought that he had more than one black vial, but now it seemed not.

His huge face was swept with the panic of terror. He glanced wildly around him.

Through the open end of my gully I saw in the distance, miles away, the enlarging figure of Alan rising up. Then it ducked in back of a distant rising peak. Polter undoubtedly saw it. He was fumbling with his opalescent vial. In his confused panic he made the mistake of taking the diminishing drug and instantly seemed to regret it. His curse rumbled above me. His glance went down to the rocks at his feet, and there he saw his black vial lying with its stopper out. His body already was beginning to dwindle. He stooped, seized the vial, and took the enlarging drug. The shock of it mode him stagger; momentarily he disappeared from my line of vision but I could hear his panting breath and the unsteady pound of his footsteps.

I still held that huge round ball of the drug. I seized a loose stone and frantically knocked off a chunk-heaven knows how much. I shoved it into my mouth, chewed and hastily swallowed it. And with the lurching, swaying, shrinking gully closing in upon me, I ran to get out of its distant end.

I was heading toward where Alan and his father were hiding. I came from the gully into the open, just as the walls closed behind me. The whole scene was a dizzying, blurred sway of contracting movement. I saw that I was in a circular valley now some five miles in diameter, with its jagged enclosing walls rising sheerly perpendicular out of sight in the haze overhead.

Polter had staggered backward. I saw him a mile or so away. His back at that instant was turned to me. He was now no more than three or four times my own height. He scrambled against the valley cliff wall as though trying to find a foothold to climb up it. He went a little way, but fell back.

Near me, Alan and old Dr. Kent suddenly appeared. I was larger than they. Alan gasped with surprise.

"You, George! You got Babs--"

"Yes--Babs is around somewhere! Stay down here! Don't lose her in size!

Stay small! Search and--"

"But, George--"

"I'll tackle Polter. I've taken--G.o.d, I don't know how much I've taken of the drug!"

They were shrinking down by my boot tops. Alan shouted suddenly, "There's Babs! Thank G.o.d, she's all right."

She was so small that I couldn't see her, or even hear her, though she must have been calling to them. Alan again screamed up at me with his little voice:

"She's here, George! You--go on and get Polter! I can't overtake you--haven't enough of the drug!" His tiny voice was fading away. "Go and get him, George! This time--get him--"

I swung with a staggering step around to face the open valley. It had by now shrunk to nearly half a mile in width. Its smooth walls rose some two or three thousand feet to an upper circular horizon with murky distance overhead. Polter stood across from me. He had tried to climb out but could not. He saw me and came lurching. We were a quarter of a mile from each other. I ran forward through a shifting scene of shrinking rock walls and crawling, contracting ground. Quarter of a mile? It seemed hardly more than a score of running strides before Polter loomed close ahead of me. He was still nearly twice my size. I stooped, seized a loose boulder, and flung it. I missed his face, but, as his hand went up carrying a bare knife, by fortunate chance, the stone struck his wrist. The knife dropped to the rocks. He stooped to recover it, but I was upon him. As I felt his huge arms go about me, half lifting me, my foot struck the knife. But in an instant it was swept down into smallness beneath us as we expanded above it.

Both of us now were unarmed in this combat of size. I was an immature youth in Polter's first grip upon me. I heard his panting words, grimly triumphant:

"This--George Randolph, I haf been--waiting for so many years! The hunchback--takes his revenge--now--"

He lifted me. His great arms were unbelievably powerful, but I could feel them dwindling. I was enlarging faster. Just a few moments--if I could last a few moments.... My feet were off the ground, my chest pressed close against the little cage between us. He had a hand shoving back my head; his fingers sought my throat. I wound my legs around him, and then he tried to throw me down and fall upon me. But he had twisted and my back was against the cliff. The rocks were shoving at us, insistently pushing with almost a living movement. Polter staggered with me. His grip on my throat tightened, shutting off my breath. My senses whirled. His grim sardonic face over me became blurred. I tore futilely at my throat to break his choking grip. All the world was a roaring chaos to my fading senses. Then in the blur I saw horror sweep his expression. His fingers involuntarily loosened. I got a breath of blessed air, gasping, and my sight cleared.

Walls were closing around us! We were in a pit barely ten feet wide, with the top a few feet above Polter's head. The nearer wall shoved us again. Our bodies almost filled the shrinking pit! Polter lurched and cast me off. I half fell, striking my shoulder against the opposite wall, and I saw Polter leap at the dwindling brink and scramble out.

I was nearly wedged. As I rose, the top of the pit only reached my waist. Polter had fallen on the upper ground, and was on hands and knees. Instead of standing up, he lurched at me trying to shove me back.

But I was out; I clutched at him. We were almost of a size now. We rolled on the ground, locked together; rolled to the brink of the pit and over it, as it shrank to a little round hole unnoticed beneath our threshing bodies!

At the side of the circular valley Alan and Dr. Kent crouched with the smaller figure of Babs between them. They saw Polter and me as two swaying gigantic forms locked in a death struggle, towering against the sky. Tremendous expanded bodies! They saw us come to grips; saw the great hunched Polter bend me backward, choking me.

Our bodies lurched. Our huge legs with a single step brought us to the center of the valley. It was a shrinking valley to Alan, Babs and Dr.

Kent, for they too, were enlarging. But the fighting giant figures were growing faster. In only a moment their shoulders were up there in the sky, pressing against the narrowing cliff walls.

Alan gasped, "But George will be crushed! Look at him!"

Horror swept them as they crouched, watching. The enormous pillars of Polter's legs towered straight up from near at hand. Alan was aware of himself screaming:

"George, get out! You're too large! Too large for in here!"

As though his microscopic voice could reach me--my head a hundred feet above him. But he screamed it again. This was all in a few horrible moments, though it seemed to the three watchers an eternity. Alan was helpless to aid me; they had taken all of the enlarging drug they had.

Then they saw Polter cast me off. I lurched and struck, with my shoulders wedged against the cliff directly over where they crouched.

The overhead sky was darkened as Polter scrambled upward.