to obscure the sky, and rapidly burying them altogether as though in a grave. Within an hour they were compelled to dig themselves out, yet it proved partial escape from the pitiless lashing. The wind howled like unloosed demons, and the air grew cold, adding to the sting of the grit, when some sudden eddy hurled it into their hiding place. To endeavor further travel would mean certain death, for no one could have guided a course for a hundred feet through the tempest, which seemed to suck the very breath away. To the fugitives came this comfort—if they could not advance, then no one else could follow, and the storm was completely blotting out their trail. It was three o'clock before it died sufficiently down for them to venture out. Even then the air remained full of sand, while constantly shifting ridges made travel difficult. Only grim necessity—the suffering of the ponies for water, and their own need for soon reaching the habitation of man and acquiring food—drove them to the early venture. They must attain the valley of the Salt Fork that night, or else perish in the desert—there remained no other choice. Tying neckerchiefs over their horses' eyes, and lying flat themselves, they succeeded in pressing slowly forward, winding in and out among the shifting dunes, with only the wind to guide them. It was an awful trail, the hoofs sinking deep in drifting sand, the struggling ponies becoming so exhausted that their riders finally dismounted, and staggered forward on foot, leading them stumbling blindly after. Once the negro's horse dropped, and had to be lashed to its feet again; once Keith's pony stumbled and fell on him, hurling him face down into the sand, and he would have died there, lacking sufficient strength to lift the dead weight, but for Neb's assistance. As it was he went staggering blindly forward, bruised, and faint from hunger and fatigue. Neither man spoke; they had no breath nor energy left to waste; every ounce of strength needed to be conserved for the battle against nature. They were fighting for life; fighting grimly, almost hopelessly, and alone. About them night finally closed in, black and starless, yet fortunately with a gradual dying away of the storm. For an hour past they had been struggling on, doubting their direction, wondering dully if they were not lost and merely drifting about in a circle. They had debated this fiercely once, the ponies standing dejectedly, tails to the storm, Neb arguing that