together with the position of the white man, told him that the black sergeant was attempting to carry off the white girl. Why he should be doing this when he had her in his power and had also captured and secured the only creature in the jungle who might wish to defend her in so far as the black could know, Tarzan could not guess for he knew nothing of Usanga's twenty-four dream wives nor of the black's fear of the horrid temper of Naratu, his present mate. He did not know, then, that Usanga had determined to fly away with the white girl never to return, and to put so great a distance between himself and Naratu that the latter never could find him again; but it was this very thing that was in the black's mind although not even his own warriors guessed it. He had told them that he would take the captive to a sultan of the north and there obtain a great price for her and that when he returned they should have some of the spoils.
These things Tarzan did not know. All he knew was what he saw—a Negro attempting to fly away with a white girl. Already the machine was slowly leaving the ground. In a moment more it would rise swiftly out of reach. At first Tarzan thought of fitting an arrow to his bow and slaying Usanga, but as quickly he abandoned the idea because he knew that the moment the pilot was slain the machine, running wild, would dash the girl to death among the trees.
There was but one way in which he might hope to succor her—a way which if it failed must send him
