Walter's straining eyes had failed to make out Tad and Stacy, however, so the Professor bade him continue firing his rifle. This was a pleasant occupation for Walter, for, like his companions, next to a pony he loved a gun.

Ned had returned with the water-bags, and Parry had finished watering the stock. It was now near sunset.

"No signs yet?" questioned the guide, joining Walter on the knoll.

"Not a thing."

"That doesn't seem right. Stop your firing and come get some supper. We must eat and put ourselves in shape or we'll be good for nothing. Did those boys take any food with them?"

"I think I saw Tad stowing something in his pockets before he started. I'm sure I did," spoke up Ned Rector.

"There's a lad who knows his business," approved Parry, moving toward the camp with Walter.

"Why have you discontinued the shooting?" demanded the Professor in surprise.

"To eat. Half an hour's intermission will make little difference. If the lads are on their way, we'll be able to call them in before it gets dark. If not, then I shall go out to look for them. They're all right. I think you need feel no concern over them."

"Must have gone a long way," spoke up Ned.