CHAPTER XVI
First Aid in the Clouds!
"What's that?" all three exclaimed.
Facing in the direction whence the sound seemed to come, they put their hands around their mouths, and shouted together, "Hoo-oo!"
Again there was a faint reply.
"It's down the Gulf Side Trail, and a bit west!" cried Art. "Come on!"
"Easy!" cried Rob. "We don't want to go rushing off the trail this way, or we'll be lost, too. Here, let's go south on the Gulf Side, until the shouts are directly west of us, and then strike in toward 'em. Keep yelling as we go."
The answering halloo grew nearer as they moved south on the Gulf Side, and presently it seemed quite close, to the west. The boys struck off toward it, over what seemed almost like a rocky pasture there was so much mountain grass at this spot, and in a hundred yards or so they came upon a man and two women, one of the latter seated on the ground moaning, her face pale with pain, while the other was rubbing her ankle.
