each failing. Both looked about, thinking that possible assistance might be at hand, but all the others engaged in the combat were too busy to notice them.
Slowly but surely the pair drew closer to the edge of the river, which at this point was some fifteen or twenty feet below the ledge of rock upon which the combat was occurring. In the stream the rapids swirled and boiled in every direction, occasionally sending a shower of spray up to their very feet. The dampness made the rocks slippery and both had all they could do to retain their footing.
At last Dave seemed to obtain a slight advantage. The Indian relaxed his vigor for just a moment and in that fraction of time the young soldier caught him by the throat and gave him such a squeeze that the redman's windpipe was well-nigh dislocated.
At this the Indian uttered a grunt and began to back away, but still retained his grip on Dave. This brought the pair closer than ever to the edge of the rocks.
"Look out!" came a sudden cry from Henry, who happened to see the movement. "Dave! Dave! Look out!"
Dave heard the cry, but was powerless to heed it. At the very edge the rocks were worn smooth, and of a sudden the Indian slid backward dragging
