We travelled on all day, till, leaving the hilly country and crossing several streams, we saw the wide prairie stretching out before us, beyond some thick clumps of trees.  Towards one of these clumps the Indians advanced, when I heard the neigh of a horse.  In a few minutes we saw a couple of Indians, who had charge of several steeds tethered among the trees.  A few words were exchanged between my captors and them, after which they immediately set to work to build a lean-to and light a fire.  From this I knew that they were going to pass the night in the wood.  Again the hope rose in my breast that I might have a chance of escaping, but I tried to put on as unconcerned an air as possible.