It was obvious that the octopi craft had been alarmed by the terrific explosion. They now adopted tactics similar to the American ship's, and for awhile both submarines circled cautiously, maneuvering for an opening.
"If only we could keep the ship steady!" Graham muttered. "But then that heat ray'd get us!"
The commander kept his eyes on the teleview. Again and again the violet shaft pronged at them. The heat grew stifling. Sweat was pouring from all the men's bodies. Every face was strained and taut.
"Starboard full!" Wells said suddenly. "A little up, Graham!" He had seen a chance; the octopi craft was slightly above, and in a moment would pass directly in the line of the bow tubes. The NX-1 stuck her nose up, swung rapidly to the right. Keith pulled back the firing lever, releasing one torpedo.
The long messenger of death hurtled straight for the enemy's hull. They watched its course breathlessly....
"My God!" the first officer groaned. "Could they see it coming?" For the octopi submarine had swung to one side, neatly dodging the speeding tube of dynamite.
"One left!" he added bitterly. "One left!"
desperate plan formed in Keith Wells' mind. His last torpedo simply had to strike the mark; he could take no chances with it. He motioned the haggard-faced Graham to him.