"They've gone away across London," he said. "I guess they've got a bigger camp there. Of a night, all over there, Hampstead way, the sky is alive with their lights. It's like a great city, and in the glare you can just see them moving. By daylight you can't. But nearer--I haven't seen them--" (he counted on his fingers) "five days. Then I saw a couple across Hammersmith way carrying something big. And the night before last"--he stopped and spoke impressively--"it was just a matter of lights, but it was something up in the air. I believe they've built a flying-machine, and are learning to fly." I stopped, on hands and knees, for we had come to the bushes. "Fly!" "Yes," he said, "fly." I went on into a little bower, and sat down.