From the darkness he saw another complicated mass of metal tentacles and glass advancing up towards him. Fear smote the cook, and almost without volition be pointed his guns and pulled the triggers. As before, a bullet crashed into the great dome of glass, and he watched a short but terrible death struggle. He had, by himself, slain two octopi!

A tremendous elation filled McKegnie—until it occurred to him that his shots might have been heard outside. At once he ran and looked at the teleview view screen, and what he saw on its silver surface took all the triumph abruptly out of him. The octopi outside were darting about with alarming activity; a whole cluster of them was centered at the exit port, and, even as the cook stared, the preliminary sounds of opening it came to his ears.

"Now I got to run this ship!" he groaned.


e peered at the mass of levers and wheels, put out a hand, closed his eyes, hesitated, and pulled one of them back. Nothing happened.

He tried another. The noise below grew, but still the NX-1 remained motionless. Desperate, the cook jerked several other levers. The whine of electric motors surged through the silence; the submarine shuddered and slewed off to the right, as if trying to dig into the sea-floor.

"I got it started!" he cried. He did something else. The NX-1 stuck her bow dizzily up and sped into the misty-blue realm above in a grand, sweeping circle. The sea-floor with its mound-buildings and swarming octopi fell away behind with a rush.

"There!" muttered the triumphant cook. "But—how did I do it?"

The submarine was rising like a sky-rocket. McKegnie remembered suddenly that Wells had said the cavern was only a few miles high; he must now be very near the top. He held his breath while he pushed a likely looking lever the other way.