o everything that transpired outside his own thoughts, devoted to
foiling the power of Moyen.

"I've found him!" snapped Munson.

* * * * *

He pointed with a shaking forefinger to one of the mother-subs crawling
up the slant of the ocean bed, twisted one of the little nubs of the
Sound-and-Vision apparatus, and the angelic face and Satanic eyes, the
twisted body, of Moyen came into view.

The face was calm with dreadful purpose, and Moyen stood in the heart of
one of his monsters, his eyes turned toward the land. With a gasp of
terror, dreadfully afraid for the first time, Prester Kleig turned and
looked into the eyes of Charmion....

"No," she said. "It will never happen. I have faith in you!"

There were still ten minutes of the two hours left when the mother-subs
broke water and started crawling inland, swiftly, surely, without
faltering in the slightest as they changed their element from water to
land.

As though their appearance had been the signal, the aero-subs in action
against the first line of American planes broke out of the one-sided
fight and dived for their mother ships, while a mere handful of the
American planes started back for home to prepare anew to continue the
struggle.

Prester Kleig gave the signal to the second monster armada which had
remained in reserve.

"Do everything in your power to halt the march of Moyen's amphibians!"

Ten minutes to go, and Professor Maniel still labored like a Titan.

CHAPTER XI

_Caucasia Falls Silent_

As the scores of amphibian monsters came lumbering forth upon dry land
it became instantly apparent why the aero-subs had returned to the
mother ships. For a few moments, out of the water, the amphibians were
almost helpless, with practically no way of attack or defense--as
helpless as huge turtles turned legs up.

But as each aero-sub entered its proper slot in the side of the mother
amphibian, it was turned about and the nose thrust back into the
opening, which closed down to fit tightly about the nose of the
aero-sub, so that those flame-breathing monsters protruded from the
sides of the amphibians in many places--transforming the amphibians into
monsters with hundreds of golden, licking tongues!

As, with each and every aero-sub in place, the amphibians started moving
inland, Professor Maniel made his first move. With the tiny apparatus
upon which he had been working, he stepped to the table before the
Sou