For a moment in his tender voice I caught a glimpse of a new Challenger, something very far from the bullying, ranting, arrogant man who had alternately amazed and offended his generation. Here in the shadow of death was the innermost Challenger, the man who had won and held a woman's love. Suddenly his mood changed and he was our strong captain once again.
"Alone of all mankind I saw and foretold this catastrophe," said he with a ring of exultation and scientific triumph in his voice. "As to you, my good Summerlee, I trust your last doubts have been resolved as to the meaning of the blurring of the lines in the spectrum and that you will no longer contend that my letter in the Times was based upon a delusion."
For once our pugnacious colleague was deaf to a challenge. He could but sit gasping and stretching his long, thin limbs, as if to assure himself that he was still really upon this planet. Challenger walked across to the oxygen tube, and the sound of the loud hissing fell away till it was the most gentle sibilation.
"We must husband our supply of the gas," said he. "The atmosphere of the room is now strongly hyperoxygenated, and I take it that none of us feel any distressing symptoms. We can only determine by actual experiments what amount added to the air will serve to neutralize the poison. Let us see how that will do."
We sat in silent nervous tension for five minutes or more, observing our own sensations. I had just begun to fancy that I felt the constriction round my temples again when Mrs. Challenger called out from the sofa that she was fainting. Her husband turned on more gas.
"In pre-scientific days," said he, "they used to keep a white mouse in every submarine, as its more delicate organization gave signs of a vicious atmosphere before it was perceived by the sailors. You, my dear, will be our white mouse. I have now increased the supply and you are better."
"Yes, I am better."
"Possibly we have hit upon the correct mixture. When we have ascertained exactly how little will serve we shall be able to compute how long we shall be able to exist. Unfortunately, in resuscitating ourselves we have already consumed a considerable proportion of this first tube."
"Does it matter?" asked Lord John, who was standing with his hands in his pockets close to the window. "If we have to go, what is the use of holdin' on? You don't suppose there's any chance for us?"
Challenger smiled and shook his head.