When the hour had passed, both boys announced their readiness to make a fresh start; and although the heat was still quite severe, they threw the saddles on the horses, and were soon off.

Hours later the two found themselves considering the subject of a camp. The afternoon was wearing away, and, ere long, night would be at hand. The moon, past its first quarter, hung in the sky overhead, so that they need not anticipate darkness with the coming of sunset.

“Look away off yonder; that line of trees seems inviting a closer acquaintance,” declared Frank, pointing; “because, unless I’m greatly mistaken, there must be a stream of some sort there. Let’s wind up the day with a little race, Bob!”

The Kentucky boy was always willing for a trial dash; hence they allowed the two horses to have their heads across the level plains. And, as often happened, they arrived at their goal neck and neck.

“Call it a draw!” laughed Frank, as he threw himself to the ground.

“I’m willing,” replied his chum, proud because the black was able to keep on even terms with a horse born and brought up in that country.

First the boys attended to their faithful steeds; and, only after seeing them comfortable, did they think to take a drink from the stream, and begin to get a camp in readiness for the coming night.

Frank was putting up a little silk tent which he had brought along when he heard Buckskin snorting loudly. He knew that something strange must have startled the little beast. Many a time had he depended on Buckskin to warn him, during the night, of danger; now, leaving his work, he hastened to snatch up his rifle, after which he called to his chum.

“Bob! this way, quick!”

Young Archer had been dipping up some clear water for the coffee when he heard this sudden hail. It seemed to breathe of peril; and, quick to act, he started for the spot where his companion stood. Seeing that Frank was staring upward toward the sky Bob allowed his wondering gaze to travel in that direction. What he discovered filled him with mingled awe and bewilderment.