"We've picked out the trail we expect to follow, dad," Frank said, pleadingly; "and it seems to run pretty smooth, with only a few mountains to cross, and a couple of rivers to ford. If you don't object seriously, Bob and I would prefer to go mounted." "Oh! as far as that goes, I don't blame you, boys," the stockman hastened to say in reply; for he could understand the yearning one feels for a favorite horse; and how a seat in the saddle seems to be the finest thing in the world. "Thank you, dad!" exclaimed Frank. "I reckoned that you'd talk that way. Somehow or other I just don't feel more'n half myself out of the saddle. And when we start to go down into the canyon we can find some place to leave our mounts where they'll be 'tended decently enough." Ah Sin, the Chinese cook of the ranch, who generally accompanied the boys when the whole outfit went on the grand round-up, with the mess wagon in attendance, now came outdoors, and beat his gong to announce dinner. The cowboys were not far away, awaiting the summons with the customary range appetites held in check; and when they were seated at the table they presented a merry crowd. Frank's mother happened to be visiting East at this time. He had a maiden aunt, however, who looked after the household duties, and sat at the end of the long table to pour the coffee. Of course there was more or less talk about the sudden flitting of the half-breed, Abajo. Nobody had any regrets, for he had never been liked. And there were several who secretly felt pleased, because they had happened to quarrel with the dark-skinned Mexican at different times, and did not altogether fancy the way he had of scowling, while his finger felt the edge of the knife he carried in his gay sash, after the manner of his countrymen. Colonel Haywood did not see fit to explain the real cause for the going of Abajo, except to his foreman, Bart Heminway. But during the evening, when Frank and Bob were making up their packs so as to get an early start in the morning, the ranch owner might have been seen in earnest consultation with the foreman. Presently Bart went out, to return with Old Hank Coombs, and another cowman known as Chesty Lane; who had of course received this name on account of the way he thrust out his figure, rather than from any inclination on his part to boast of his wonderful deeds. "Chesty tells me, Colonel," said Bart, "that he used to be a guide in this same Grand Canyon, years ago. I never knowed it 'till right to-day. And if so be you intend to send Old Hank up thar to keep tabs on the doings of that ugly pair, Abajo and Warringford, thar couldn't be a better man to pick out than Chesty. You can depend on him every time." Then followed another conference, of which the two boys, wrapped up in their own plans in another room, were of course entirely ignorant.