A COWBOY TAKES A HEADER
"What is that?" questioned Professor Zepplin sharply.
"That's what I'm trying to make out," replied the guide.
"Looks like horsemen."
"Yes, it is. But I can't understand why they can be riding at that killing pace on a hot afternoon such as this."
About this time the boys' attention had been attracted to the yellow cloud by Stacy Brown, who, notwithstanding his apparent slowness, had sharp eyes when there was anything to be seen.
"Somebody's coming," he announced between sips.
"What's that?" demanded Tad, springing from the water hole, followed closely by Walter and Ned.
"Somebody coming to pay us an afternoon call. By the way they're whooping it up they must be in a hurry about something."
All hands ran to where Mr. Parry and the Professor were standing.