Hope and Have by Oliver Optic

Fanny was the originator of the scheme by which it was expected to save the party from the ferocity of the Indians, and enable the trapper to keep his plighted faith with them. The exiles, accompanied by their new-found friend, were to descend the river in the bateau to Mankato. Wahena was to be taken with them to some point above their destination, where he was to be delivered to his friends, when his presence as a hostage was no longer necessary to the safety of his captors.

This was thought to be the only safe plan, for even Rattleshag did not pretend to believe that the Indians would not be treacherous when Wahena was no longer in peril. It was arranged that the trapper should return to Lean Bear, and inform him of the terms on which his son could be saved. He was instructed to tell the savage chief that Ethan could fire eight shots a minute, and that Wahena would surely atone with his life for any treachery on the part of the Indians.