Strange to say, the inventor or discoverer was a young Jewish woman not yet thirty years of age. From childhood she had taken an intense interest in the question, and the terrible accident above recorded seemed to spur her on to further exertion. She had a wonderful knowledge of ancient languages, and she searched for information concerning chemical secrets which she believed lost to the present day. She had a notion that the atomic structure of substances was better known to students in the early ages. It was said that the hint she acted on was conveyed to her by some passage in a Chaldean inscription of great antiquity. She neither admitted nor denied it. Perhaps the susceptibilities of an intensely Eastern nature led her to welcome the halo of romance cast over her discovery. Be that as it may, it is certain she discovered a substance, or rather substances which, brought into contact with each other, faithfully fulfilled all that the chemist had ventured to suggest. Together with unwavering efficiency there was perfect safety; and so much of the action depended on the structure, not the composition, that the efforts of thousands of _savants_ failed to discover the secret of the invention. What the substances were in composition, and what they became after decomposition was easily determined, but how to make them in a form that fulfilled the purpose required defied every investigation. The inventor did not patent her invention. After making an enormous fortune from it, she sold it to the Government, who took over the manufactory and its secrets; and whilst they sold it in quantity for ordinary use, they jealously guarded against its accumulation in foreign countries for possible warlike purposes. This invention, as much almost as its vast naval and military forces, gave to the empire of Britain the great power it possessed. The United States alone affected to underrate that power. It was the habit of Americans to declare that they did not believe in standing armies or fleets. If they wanted to fight, they could afford to spend any amount of treasure; and they could do more in the way of organising than any nation in the world. They were not going to spend money on keeping themselves in readiness for what might never happen. But we have not now to consider the aerial ships from their warlike point of view. It should be mentioned that the inventor of this new form of power was the aunt of Colonel Laurient. She died nearly twenty years before this history, and left to him, her favourite nephew, so much of her gigantic fortune as the law permitted her to devise to one inheritor. CHAPTER IX. TOO STRANGE NOT TO BE TRUE.