The situation was the more serious from the fact that the fresh air devices were not working properly and the air inside the submarine was already getting noticeably stale and foul.
"We must rush that door; it's our only chance," declared the officer in a whispered voice.
"But he is liable to shoot," objected Mr. Barr, eying the blued-steel muzzle of the revolver which was pointed threateningly at them.
"It cannot be helped. It means death in a fearful form if we do not dislodge him from that position, and a man in his condition cannot listen to reason."
"Well, what do you propose?"
"That you start talking to him to distract his attention, offer him money or anything to give up the lever. Then I'll watch my chance and rush in on him; thank goodness, that door has no lock on it."
"Barton!" said Mr. Barr, in a resonant voice.
"Well?" snarled the lunatic.
"Be calm now and listen to reason. Is it money you wish?"
"No, blood! Human lives!" shrieked the maniac.