andwich! 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 prone, 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 dru