So Blake's instructions were to follow them without pushing, to let them feel they were being pursued, yet by no means to hasten them, and, if the general's favorite scout proved to be all he promised as guide and pathfinder, Webb might reasonably hope by dint of hard night riding, to be first at the tryst at break of day. Then they would have the retreating Sioux, hampered by their few wounded and certain prisoners whom they prized, hemmed between rocky heights on every side, and sturdy horsemen front and rear. It was eight by the watch at the parting of the ways. It was 8:30 when Blake retook the trail, with Sergeants Schreiber and Winsor, the latter borrowed from Ray, far in the van. Even had the ground been hard and stony these keen-eyed soldier scouts could have followed the signs almost as unerringly as the Indians, for each had had long years of experience all over the West; but, despite the steadily falling snow, the traces of hoofs and, for a time, of _travois_ poles could be readily seen and followed in the dim gray light of the blanketed skies. Somewhere aloft, above the film of cloud, the silvery moon was shining, and that was illumination more than enough for men of their years on the trail. For over an hour Blake followed the windings of a ravine that grew closer and steeper as it burrowed into the hills. Old game trails are as good as turnpikes in the eyes of the plainsman. It was when the ravine began to split into branches that the problem might have puzzled them, had not the white fleece lain two inches deep on the level when "Lo" made his dash to escape. Now the rough edges of the original impression were merely rounded over by the new fallen snow. The hollows and ruts and depressions led on from one deep cleft into another, and by midnight Blake felt sure the quarry could be but a few miles ahead and Bear Cliff barely five hours' march away. So, noiselessly, the signal "Halt!" went rearward down the long, dark, sinuous column of twos, and every man slipped out of saddle--some of them stamping, so numb were their feet. With every mile the air had grown keener and colder. They were glad when the next word whispered was, "Lead on" instead of "Mount."