Shuffling down the long slope, its tired legs moving automatically, the drooping pony swerved a little and then came to a halt, trembling with fright. Startled out of his unpleasant ruminations, his lips tensing over his teeth in a savage snarl, Calumet Marston swayed uncertainly in the saddle, caught himself, crouched, and swung a heavy pistol to a menacing poise.