Shagbark kept his keen eyes on the youth. He knew from the expression on Alden’s face that he had discovered that which the other meant him to see.

“Wal, what is it?” asked the guide.

“I am not sure, but I think a party of horsemen are hovering along the bank of the river, a little way out on the prairie.”

“Zactly; are they white or red?”

“It is impossible to tell at so great a distance.”

“Onpossible fur ye; what good is that gimcrack of yers, anyway?”

“It shows me what I could not otherwise see.”

“I never use them things, but my eyes tell me a blamed sight more than that can tell ye; them horsemen ye obsarved are Injins.”

“You have wonderful eyesight, Shagbark,” remarked Alden admiringly, again lifting the glass to his eyes and peering through them.