XLV. ARMAGEDDON, 339 XLVI. VICTORY, 347 XLVII. THE JUDGMENT OF NATAS, 355 XLVIII. THE ORDERING OF EUROPE, 366 XLIX. THE STORY OF THE MASTER, 375 EPILOGUE.--"AND ON EARTH PEACE!" 386 THE ANGEL OF THE REVOLUTION. CHAPTER I. AT THE ELEVENTH HOUR. "Victory! It flies! I am master of the Powers of the Air at last!" They were strange words to be uttered, as they were, by a pale, haggard, half-starved looking young fellow in a dingy, comfortless room on the top floor of a South London tenement-house; and yet there was a triumphant ring in his voice, and a clear, bright flush on his thin cheeks that spoke at least for his own absolute belief in their truth. Let us see how far he was justified in that belief. * * * * * To begin at the beginning, Richard Arnold was one of those men whom the world is wont to call dreamers and enthusiasts before they succeed, and heaven-born geniuses and benefactors of humanity afterwards. He was twenty-six, and for nearly six years past he had devoted himself, soul and body, to a single idea--to the so far unsolved problem of aërial navigation. This idea had haunted him ever since he had been able to think logically at all--first dimly at school, and then more clearly at college, where he had carried everything before him in mathematics and natural science, until it had at last become a ruling passion that crowded everything else out of his life, and made him, commercially speaking, that most useless of social units--a one-idea'd man, whose idea could not be put into working form. He was an orphan, with hardly a blood relation in the world. He had started with plenty of friends, mostly made at college, who thought he had a brilliant future before him, and therefore looked upon him as a man whom it might be useful to know. But as time went on, and no results came, these dropped off, and he got to be looked upon as an amiable lunatic, who was wasting his great talents and what money he had on impracticable fancies, when he might have been earning a handsome income if he had stuck to the beaten track, and gone in for practical work. The distinctions that he had won at college, and the reputation he had gained as a wonderfully clever chemist and mechanician, had led to several offers of excellent positions in great engineering firms; but to the surprise and disgust of his friends he had declined them all. No one knew why, for he had kept his secret with the almost passionate jealousy of the true enthusiast, and so his refusals were put down to sheer foolishness, and he became numbered with the geniuses who are failures because they are not practical.