“Well, have you noticed what one might call the remarkable case of the disappearing inventor—the inventor who turns up in a blaze of publicity, fires off a few successful experiments, and vanishes?” “Can't say I 'ave,” said Bert. “Well, I 'ave, anyhow. You get anybody come along who does anything striking in this line, and, you bet, he vanishes. Just goes off quietly out of sight. After a bit, you don't hear anything more of 'em at all. See? They disappear. Gone—no address. First—oh! it's an old story now—there was those Wright Brothers out in America. They glided—they glided miles and miles. Finally they glided off stage. Why, it must be nineteen hundred and four, or five, THEY vanished! Then there was those people in Ireland—no, I forget their names. Everybody said they could fly. THEY went. They ain't dead that I've heard tell; but you can't say they're alive. Not a feather of 'em can you see. Then that chap who flew round Paris and upset in the Seine. De Booley, was it? I forget. That was a grand fly, in spite of the accident; but where's he got to? The accident didn't hurt him. Eh? 'E's gone to cover.” The soldier prepared to light his pipe. “Looks like a secret society got hold of them,” said Bert. “Secret society! NAW!” The soldier lit his match, and drew. “Secret society,” he repeated, with his pipe between his teeth and the match flaring, in response to his words. “War Departments; that's more like it.” He threw his match aside, and walked to his machine. “I tell you, sir,” he said, “there isn't a big Power in Europe, OR Asia, OR America, OR Africa, that hasn't got at least one or two flying machines hidden up its sleeve at the present time. Not one. Real, workable, flying machines. And the spying! The spying and manoeuvring to find out what the others have got. I tell you, sir, a foreigner, or, for the matter of that, an unaccredited native, can't get within four miles of Lydd nowadays—not to mention our little circus at Aldershot, and the experimental camp in Galway. No!” “Well,” said Bert, “I'd like to see one of them, anyhow. Jest to help believing. I'll believe when I see, that I'll promise you.” “You'll