“So be it, master; but take notice of one thing: I give you a day longer, and I’ll not wait after that. To-day is Sunday; we might say Monday, as it is one o’clock in the morning, and if we don’t get off by Tuesday, I’ll run the risk. I’ve made up my mind to that!”

The doctor made no answer, and in a few minutes they got back to the car, where he took his place beside Kennedy, who lay there plunged in silence so complete that it could not be considered sleep.

CHAPTER TWENTY-SEVENTH.

Terrific Heat.—Hallucinations.—The Last Drops of Water.—Nights of Despair.—An Attempt at Suicide.—The Simoom.—The Oasis.—The Lion and Lioness.

The doctor’s first care, on the morrow, was to consult the barometer. He found that the mercury had scarcely undergone any perceptible depression.

“Nothing!” he murmured, “nothing!”

He got out of the car and scrutinized the weather; there was only the same heat, the same cloudless sky, the same merciless drought.

“Must we, then, give up to despair?” he exclaimed, in agony.

Joe did not open his lips. He was buried in his own thoughts, and planning the expedition he had proposed.

Kennedy got up, feeling very ill, and a prey to nervous agitation. He was suffering horribly with thirst, and his swollen tongue and lips could hardly articulate a syllable.