When Tappan ceased to sweat and his skin became dry, he drank half a canteen of water, and slowed his stride. Inured to desert hardship as he was, he could not long stand this. Jenet did not exhibit any lessening of vigor. In truth what she showed now was an increasing nervousness. It was almost as if she scented an enemy. Tappan never before had such faith in her. Jenet was equal to this task.
With that blazing sun on his back, Tappan felt he was being pursued by a furnace. He was compelled to drink the remaining half of his first canteen of water. Sunset would save him. Two more hours of such insupportable heat would lay him prostrate.
The ghastly glare of the valley took on a reddish tinge. The heat was blinding Tappan. The time came when he walked beside Jenet with a hand on her pack, for his eyes could no longer endure the furnace glare. Even with them closed he knew when the sun sank behind the Panamints. That fire no longer followed him. And the red left his eyelids.
With the sinking of the sun the world of Death Valley changed. It smoked with heat veils. But the intolerable constant burn was gone. The change was so immense that it seemed to have brought coolness.
In the twilight—strange, ghostly, somber, silent as death—Tappan followed Jenet off the sand, down upon the silt and borax level, to the crusty salt. Before dark Jenet halted at a sluggish belt of fluid—acid, it appeared to Tappan. It was not deep. And the bottom felt stable. But Jenet refused to cross. Tappan trusted her judgment more than his own. Jenet headed to the left and followed the course of the strange stream.
Night intervened. A night without stars or sky or sound, hot, breathless, charged with some intangible current! Tappan dreaded the midnight furnace winds of Death Valley. He had never encountered them. He had heard prospectors say that any man caught in Death Valley when these gales blew would never get out to tell the tale. And Jenet seemed to have something on her mind. She was no longer a leisurely, complacent burro. Tappan imagined Jenet seemed stern. Most assuredly she knew now which way she wanted to travel. It was not easy for Tappan to keep up with her, and ten paces beyond him she was out of sight.
At last Jenet headed the acid wash, and turned across the valley into a field of broken salt crust, like the roughened ice of a river that had broken and jammed, then frozen again. Impossible was it to make even a reasonable headway. It was a zone, however, that eventually gave way to Jenet’s instinct for direction. Tappan had long ceased to try to keep his bearings. North, south, east, and west were all the same to him. The night was a blank—the darkness a wall—the silence a terrible menace flung at any living creature. Death Valley had endured them millions of years before living creatures had existed. It was no place for a man.
Tappan was now three hundred and more feet below sea level, in the aftermath of a day that had registered one hundred and forty-five degrees of heat. He knew, when he began to lose thought and balance—when only the primitive instincts directed his bodily machine. And he struggled with all his will power to keep hold of his sense of sight and feeling. He hoped to cross the lower level before the midnight gales began to blow.
Tappan’s hope was vain. According to record, once in a long season of intense heat, there came a night when the furnace winds broke their schedule, and began early. The misfortune of Tappan was that he had struck this night.
Suddenly it seemed that the air, sodden with heat, began to move. It had weight. It moved soundlessly and ponderously. But it gathered momentum. Tappan realized what was happening. The blanket of heat generated by the day was yielding to outside pressure. Something had created a movement of the hotter air that must find its way upward, to give place for the cooler air that must find its way down.