Against that glittering wall of steel, where the heroic sons of France lined the trenches against the tyrant, hundreds of thousands of Prussians, Bavarians and Saxons were doomed to fall, and the best blood of Germany was already flowing like rivers, for, though the _poilus_ during times of great pressure slowly yielded the outer forts inch by inch, yet the price which the enemy paid for their advance was far too dear. The future hung heavy with fate, and the civilised world looked on amazed, as the western armies, locked in the grip of death, swayed to and fro. The earth trembled with the shock of battle, and the very air vibrated with the whir-r-r of the fierce birds of prey, the wonderful product of the new age. Land and sea did not suffice as in days gone by, for in the heavens the struggle for freedom must also be fought. And many great men were beginning to say that the side which gained the mastery of the air, would also gain the mastery of Europe and the world. In no country was this recognised more than in England, and at early dawn even remote villages were often stirred, and the inhabitants thrilled by the advent of the whirring 'planes and air-scouts, whose daring pilots were preparing to wrest the mastery of the air from the enemy. The most daring of our English youths left the public schools and universities, and strained every nerve, risking death a hundred times, to gain the coveted brevet of a pilot's "wings" in the Royal Flying Corps. So it happened that, during one fine morning in the early summer of 1916, a group of men, some of them wearing on the left breast of their service tunics the afore-mentioned brevet, were watching a young pilot undergoing his final test in the air before gaining his wings. The place where this occurred was over an aerodrome, somewhere near London. "Phew! there he goes again. Just look at that spiral!" cried one of the onlookers. "Ha! Now he's going to loop; watch him!" exclaimed another. The daring aviator, who was flying a new two-seater fighting machine with a twelve-cylindered engine, capable of giving over fourteen hundred revolutions a minute, seemed perfectly oblivious of the danger he was in, as seen by those below, for he careered through space at a speed varying from eighty to nearly one hundred and twenty miles an hour, and performed the most amazing spirals, twists, and gymnastic gyrations imaginable. The people below, even the pilots, watched him with bated breath, and sometimes with thumping hearts. They felt somehow that he was overdoing it, and sooner or later he would crash to earth and certain death Several times even the experts, who were there to judge him, and award him the coveted brevet, felt sure that the youth had lost control of the 'plane, for she swerved so suddenly, and banked so swiftly, as she came round, that one of them exclaimed:-- "Good heavens, he's going to crash!"