Ward's face appeared in the ray of light, pale and blood-streaked.

"I wonder what happened."

"It sounded like a collision."

They stared at one another with fearful eyes. A collision while underseas in a submarine is a serious matter.

"Where's Solino?"

Justus Miles ran the beam of his torch this way and that, and saw that the room was in a fearful confusion. The gyroscopic mechanism had broken from its fastenings and rolled forward. Somewhere beneath its crushing weight lay the control board and the swarthy operator. Then they saw Solino, still in his overturned wheelchair, the cloak drawn tightly about himself and it; but the top of his head was crushed in like an eggshell. Justus Miles had touched that head when he stretched out his hand in the darkness.

He and Ward had been saved from death as by a miracle. Over their heads the great piston had hurtled, killing Solino and tearing through the steel partition into the chamber beyond, visiting it with death and destruction. One hasty examination of that place was enough. The men in there were dead.

S ick with horror, the two survivors faced the stark reality of their terrible plight. Trapped in an underwater craft, they saw themselves doomed to perish even more miserably than their companions. As the horrible thought sank home, a cool breath of air, suggesting the smell of stagnant salt water, blew through an opening created by the crushing of the plates in the vessel's hull — an opening larger than the body of a man. Miles and Ward stared at it with puzzled eyes. With such a hole in her hull, the boat should have been admitting water and not air. However, they approached the gap and examined it with their torches.

"Here goes," Ward said after a moment's hesitation, and clambered through the opening, followed by his friend. When they were able to make out their surroundings, they saw that they were in a vast tunnel or cavern, the extent of which was shrouded in darkness. How the submarine had left the ocean and penetrated to this cavern it was impossible to say; but evidently it had come so far over a shining rail, a break in which had caused the disaster. The cavern or tunnel was paved with disjointed blocks of stone which once might have been smooth and even, but which now were disarranged by time and slimy with dampness and seagrowths. In the clammy air Miles involuntarily shuddered. "Good Lord, Rusty, we're certainly up against it! The only fellow who could tell us our whereabouts is dead!"

Ward's jaw tightened. "That rail leads somewhere: it's our only hope. But first let us get our guns and some food."