"All of you have got to help," proceeded Matt's cowboy pard briskly. "Lay your guns away, somewhere, so you can give both hands to your work."

None of the cowboys had six-shooters, but all were armed with rifles. This was rather odd, but, nevertheless, a fact. When they started out after George Hobbes, the Tin Cup men had been counting on target practice at long range.

The horses had already been bunched with their heads together. Four of the cowboys, who were still holding their rifles, stepped hilariously over to where Slim and Spearman had deposited their guns, and dropped their weapons.

McGlory gave Ping a significant look. The young Chinaman stared blankly for a moment, and then a complacent grin settled over his yellow face. He was as sharp as a steel trap when it came to understanding guileful things. Ping knew what was expected of him, and he was ready.

The Comet was headed down the western slope of the hill. Four of the cowboys placed themselves at the lower wings, two on each side, ready to run with the machine when they received the word. Spearman, in his shirt sleeves, was tying one end of a riata to the timber which passengers in the aëroplane used as a footrest.

"What are you doing that for?" demanded Matt.

Spearman straightened up with a wink.

"Waal, it's fer two things, pilgrim," he answered jocosely. "Fust off, by hangin' ter the rope, Slim an' me kin pull while the rest o' the boys push. Then, ag'in, if ye've got any little trick up yer sleeve, I'll have a line on yer ole sky sailer an' ye kain't leave me behind, not noways."

That rope troubled Matt, but he could voice no reasonable objection to it. Already McGlory had played on the credulity of the punchers to the limit, and it was not safe to go much farther.

"I'm goin' ter have yer job, Jed," rallied one of the cowboys, "if ye fall outen the machine an' bust yer neck."