There were stretches of plain where the panting pony and his master could not get a drop of water for hours. When they plunged into the mountains in the depth of winter, the temperature was often far below zero, but the undaunted rider kicked away the snow on the lee side of some boulder, kindled a fire of dead limbs, when he could find such sparse fuel, but more often he had nothing of that nature. The tough little pony was wrapped about by his blanket, the master inclosed his iron body in another, or partly in the same one, lay down and slept, with never a dream to disturb his rest. But he could not forget his duty, which was so impressed on his mind that he awoke to the minute he had set for awaking. Probably the first faint streakings of morning were showing in the east, when he flung his blanket aside, remounted and dashed off again.