or perhaps half an hour the three lay there, hearing nothing. It seemed to be night, for the darkness was impenetrable, save for the lurid flashes of fire from the volcano. Parrish, who was slowly recovering his strength, was mumbling incessantly. It was with difficulty that Jim recalled him to a realization of his surroundings.

"Where is the city of Atlantis?" he asked him.

"Over there," mumbled Parrish. "Behind the volcano. Why do you ask me?"

"I'm thinking of going there."

"Eh? Going there? You're mad. The Eye will see you, the Eye that can see for a hundred miles. They'll turn the Ray on you. Nothing is too small for the Eye. And they watch night and day."

"The Eye is off now."

"It's never off. The Eye is dark. It grows white only when they are about to use the Ray. Perhaps the Eye is watching us now."

"Nevertheless," said Jim, "I think we would do well to try to enter the city. We can't live here in the jungle at the mercy of these Drilgoes."

"It is impossible to enter. All strangers are killed by the Atlanteans."

"Dad," interposed Lucille, "I think we'd better do what Jim suggests. One of us must decide."