"Why, boys," said he, when we asked him to undertake the job, "I'd do more than this to help friends and neighbours. It's a dooty to hunt down these scallywags, a dooty, yas--and a pleasure." We took the trail that night. The thief, so far as we could conjecture, had about twenty hours start, but then he would be obliged to travel by night and by devious mountain-paths. According to old Dumble, his objective would be Bakersfield, and to reach Bakersfield some dry plains must be traversed. At the watering-places upon these plains we might expect to hear from sheep-herders and vaqueros some information respecting animals so handsome and so peculiarly marked as our colts. And so it proved. At a dismal saloon, where water was nearly as expensive and quite as bad as the whisky, we learned that a bright bay colt with a white star and stocking, and another with a white nose, had been seen early that morning. Old man Dumble gleaned more. "We're dealing with a tenderfoot and a stranger to the saloon-keeper," he said, as we struck into the sage-brush wilderness. "The fool didn't know enough to spend a few dollars at the bar. He called for one lemonade." "Well," said Ajax, "you are teetotal yourself; you ought to respect a man who calls for lemonade." "I ain't a thief," said our neighbour. "If I was," he added, "I reckon I'd cover my tracks around saloons with a leetle whisky. Boys, there's another thing. This feller we're after is ridin' too fast. Them colts won't stand it. Young things must feed an' rest. The saloon-keeper allowed they were footsore a'ready, and kinder petered out. We must keep our eyes skinned." "You're a wonder," said Ajax. "How you divined that the thief would travel this trail beats me." "Wal," said old man Dumble, "it's this way. There's a big dealer comes three times a year to Bakersfield; he pays good money for good stuff-- an' he asks no questions. I happened to hear he was a-comin' down only las' Sunday." Something in his voice, some sly gleam in his eye, aroused my suspicions. As soon as we happened to be alone, I whispered to my brother: "I say, what if the old man is playing hare and hound with us?" "Pooh!" said Ajax. "He's keen as mustard to collar this thief--the keener, possibly, since he discovered that the fellow is a tenderfoot. I've sized him up about right. He wants to establish a record. It's like this teetotal business of his. The people here refuse to believe evil of a man who drinks water, goes to church, and catches horse- thieves. I'll add one word more. To give the old fraud his due, he really holds in abhorrence any crime that might land him in the State penitentiary. Hullo! There's a faint reek out yonder. I'll take a squint through my glasses." We called a halt. We were now on the alkaline plains beyond the San Emigdio mountains. Riding all through the night, we had changed horses at a ranch where we were known. Ajax stared through his binoculars.