"In what direction?"
"It cuts the prairie from east to west."
"Well done, Frank, and who are these Indians?"
"As well as I can make out, they are Comanches."
The captain reflected a moment.
"Oh! it is some detachment of hunters," he said.
"Very likely," Frank replied.
The two men mounted.
"Frank and you, Kennedy," said the captain, at the expiration of a minute, "will go to the passage of the Buffalo, and encamp in the grotto which is there; carefully watching the movements of the Mexicans, but in such a manner as not to be discovered."
"Be satisfied of that, captain."