Lines of cavalrymen were skirting crosswise over the low hill at the other side of the valley, and against the sky line the figures of horses and men stood out clear and fine. It all seemed a splendid martial sight; but afterward, comparing this force with the army into whose front we were to blunder unwittingly, we thought of it as a little handful of toy soldiers playing at war. We never heard what became of those Belgians. Presumably at the advance of the Germans coming down on them countlessly, like an Old Testament locust plague, they fell back and, going round Brussels, went northward toward Antwerp, to join the main body of their own troops. Or they may have reached the lines of the Allies, to the south and westward, toward the French frontier. One guess would be as good as the other. One of the puzzling things about the early mid-August stages of the war was the almost instantaneous rapidity with which the Belgian army, as an army, disintegrated and vanished. To-day it was here, giving a good account of itself against tremendous odds, spending itself in driblets to give the Allies a chance to get up. To-morrow it was utterly gone. Still without being halted or delayed we went briskly on. We had topped the next rise commanding the next valley, and--except for a few stragglers and some skirmishers--the Belgians were quite out of sight, when our driver stopped with an abruptness which piled his four passengers in a heap and pointed off to the northwest, a queer, startled, frightened look on his broad Flemish face. There was smoke there along the horizon--much smoke, both white and dark; and, even as the throb of the motor died away to a purr, the sound of big guns came to us in a faint rumbling, borne from a long way off by the breeze. It was the first time any one of us, except McCutcheon, had ever heard a gun fired in battle; and it was the first intimation to any of us that the Germans were so near. Barring only venturesome mounted scouts we had supposed the German columns were many kilometers away. A brush between skirmishers was the best we had counted on seeing. Right here we parted from our taxi driver. He made it plain to us, partly by words and partly by signs, that he personally was not looking for any war. Plainly he was one who specialized in peace and the pursuits of peace. Not even the proffered bribe of a doubled or a tripled fare availed to move him one rod toward those smoke clouds. He turned his car round so that it faced toward Brussels, and there he agreed to stay, caring for our light overcoats, until we should return to him. I wonder how long he really did stay.