The long afternoon wore to a close. The heat decreased, but the dust remained and the weariness grew to gigantic proportions. The First Brigade was well ahead of Bee, Bartow, and Elzey. It had started in advance and it had increased the distance. If there was any marching in men, Jackson forced it out; they went a league for him where another would have procured but a mile, but even he, even enthusiasm and the necessity of relieving Beauregard got upon this march less than two miles an hour. Most happily, McDowell, advancing on Beauregard and Bull Run and fearing "masked batteries," marched much more slowly. At sunset the First Brigade reached the Shenandoah. The mounted officers took up one and sometimes two men beside them, and the horses struggled bravely through the cold, rapid, breast-deep current. Behind them, company by company, the men stripped off coat and trousers, piled clothing and ammunition upon their heads, held high their muskets, and so crossed. The guns and wagons followed. Before the river was passed the night fell dark. The heat was now gone by, the dust was washed away, the men had drunk their fill. From the haversacks they took the remnant of the food cooked that morning. The biscuit and the bacon tasted very good; not enough of either, it was true, but still something. The road above the river rose steeply, for here was the Blue Ridge, lofty and dark, rude with rock, and shaggy with untouched forests. This was the pass through the mountains, this was Ashby's Gap. The brigade climbed with the road, tired and silent and grim. The day had somehow been a foretaste of war; the men had a new idea of the draught and of the depth of the cup. They felt older, and the air, blowing down from the mountains, seemed the air of a far country toward which they had been travelling almost without knowing it. They saw now that it was a strange country, much unlike that in which they had hitherto lived. They climbed slowly between dark crag and tree, and wearily. All song and jest had died; they were tired soldiers, hungry now for sleep. _Close up, men, close up!_ They came to the height of the pass, marked by a giant poplar whose roots struck deep into four counties. Here again there was a ten minutes' halt; the men sank down upon the soft beds of leaf and mould. Their eyelids drooped; they were in a dream at once, and in a dream heard the _Fall in--fall in, men!_ The column stumbled to its feet and began the descent of the mountain.