man to spring to his feet, run out of the tent, and seize
his weapons.
"What can it be, Joe?" whispered Dick as they stood
at the tent door leaning on their rifles, and listening
intently.
"Dun'no'," answered Joe shortly.
Most of the numerous fires of the camp had gone out,
but the bright moon revealed the dusky forms of thousands of Indians,
whom
the unwonted sound had startled,