"Ah!" Fallon's lips were drawn in a tight grin. "Suppose the officers of the Japanese ship saw the beginnings of the effect. Suppose they radioed home, and someone did some quick thinking. Suppose, in short, that they're lying."

"Ja," whispered Bjarnsson. "Let us think."

"I've already thought," said Fallon. "Two weeks would give them time to arrange everything. The important thing is this—if the force is man-made, even destroying the projector won't do any good. They'll have others. But if it were a natural force, the psychological aspect of the thing alone would be tremendous. There'd be a chance of doing something."

The explorer's deep light eyes glinted. "Our people would fight better if it was something they could fight." He swung to the big telescope mounted in the west windows. "Bah! It gets worse. Those creatures, they don't know when they are dead. And the way they come! We must go soon."


He swung back to Fallon. "But how to find out if you are right?"

"You have a submarine," said Fallon.

"So has the Navy."

"But they're all needed. Yours can go where the big ones can't—and go deeper. These monsters are all heading for land, which means they gravitate to the surface. You might get through below."

"Yes." Bjarnsson strode up and down the cluttered room. "We could take a depth charge. If we found the volcano to be the cause, we might close the fissure.