Dixie and the Boy knew well what it all meant--merely the evacuation of another village that had come within shell-range of the Hun, or was near enough to the shifting battle-line to make it wise to escape before all in it were engulfed, made prisoner, and set to slavery in the fields on starvation rations for Hun task-masters, or, worse, deported, torn apart, child from mother, weak from strong, helpless from helpers, and deported to far-off factories or the terrors of an unknown fate. The French and Belgians have learned their lesson--learned it slow and hard and bitterly--that it is bad to be driven to leave all they own on earth, but infinitely worse to stay and still lose all, and more in the "all" than mere earthly possessions. Dixie and the Boy tramped slowly against the tide of refugees and drew at last to near the town from which the stream was pouring. It was all very pitiful, very cruel. But worse was to come. The road was one of those long main national route highways common in France, running straight as a ruler for miles on end, up hill and down dale. The roofs of the village were half a mile away, and suddenly, over these roofs, an aeroplane came skimming. It flew low, and it flew in a bee-line along above the wide straight road; and as it flew there sounded louder and plainer the unmistakable _ac-ac-ac-ac_ of a machine-gun; there was plainly to be seen a stream of spitting fire flashing from the flying shape. It swept nearer, and the clatter of its guns sounded now through a rising wail, a chorus of shrieks and calls and sharp screams, and the cries of frightened or hurt children. The gun shut off abruptly as the machine swooped up; burst out again in a long savage tattoo as it curved over and came roaring down in a steep dive. In the road there was a pandemonium of screams and cries: a wild turmoil of figures rushing hither and thither, flinging down into the ditches, scrambling over them and fleeing in terror out over the open fields. As the machine dived the two observers could see the streaking lines of the tracer bullets, hear the sharp cracks and smacks of explosives hitting the ground--and other things. They could only stand and curse in impotent rage, and the Hun machine, with a rush and a roar, spat a last handful of bullets over and past them and was gone on down the road. The two stood and watched its graceful soaring and plunging, listened to the steady rattle of its guns, swore savagely again, then turned to help some of the shrieking women and crying children about them. But next moment another distant _tat-tat-tat_ made them look up to see another black-crossed machine, and then a third, leap into sight over the village and come tearing down above the road. Dixie and the Boy both filled the few intervening seconds trying to hustle the fear-stricken villagers off the road down into the cover of the ditches, behind carts--anywhere that might be out of reach of the bullets.