But there was no denying the fact that something serious was at hand. From desultory puff s the wind had now increased to a steady blow, which drove a stinging hail of sand all about them blindingly. Eddies of hot wind caught up larger grains and dried cactus stems and drove them in terrestrial water spouts across the face of the desert. The moon was quite obscured now, and it was as black as a country church at midnight.
All at once Peggy's pony sank down, and with a long sigh stretched itself out upon the alkali. Roy's almost immediately did the same. As they did so the wind came more furiously. Half blinded and with nostrils, eyes and mouths full of sand particles, the two young travelers reeled about in the darkness. Suddenly what it all meant burst upon Roy with the suddenness of a thunder clap.
"It's a sand storm, Peggy," he cried.
A puff of wind caught up his words and scattered them over the desert.
The words sent a chill to Peggy's heart. She had heard Mr. Bell tell of the sand storms of the Big Alkali—how sometimes they last for days, blotting out trails and burying those unfortunate enough to be caught in them.
"Get your saddle off and keep your head under it," shouted Roy, recalling what he had heard Mr. Bell say of the only way to weather such disturbances.
Peggy, half dead with horror, did as she was told. By the time the work of unsaddling had been accomplished the wind was driving furiously. It was impossible to hear unless the words were shouted. The ponies, who had obeyed their first instinct at the initial warning of what was to come, turned their backs to the storm and laid out straight, with their noses to the ground. Roy and Peggy drew the big flapped Mexican saddles over their heads. Under this protection they were sheltered from the cruel fury of the wind-driven sand and brush.
It was suffocating under the saddle, but when Peggy protruded her face for even a breath of the superheated air, she quickly withdrew it. The wind was now a tornado in violence, and the sand stung like countless needles. Conversation was, of course, impossible, and they lay in silence while the suffocating gale screamed about them.
Once or twice Peggy had to scrape away the sand from the front of the saddle. She could feel it rising all about her. With the sensation came a terrifying thought. She had heard Mr. Bell tell of men whose bones had been buried in the sand only to be exposed long afterward, white and bleached, when the wind-formed sand dunes had shifted and exposed them.
All at once, above the wind and the steady roar of the furiously driven sand and alkali, Peggy thought she heard a wild screech or cry. It sounded like nothing human in its uncanny shrillness. Brave girl as she was, Peggy shuddered hysterically. Could she be losing her mind in the whirling confusion and elemental fury that waged all about her?