The Attila gradually rose higher, as the slopes of the South Downs confronted her. But she always kept about one hundred and fifty feet from the ground, deliberately courting the observation which she had once so shunned. Of her purpose or ownership no sign however was given; it was pleasant to play with the unsuspicious fools whose lives and possessions she had so ruthlessly marked for her own. A more fascinating sight than this journey it is not easy to picture. Now, for the first time in my life, I fairly revelled in the incense of my fellow-creatures’ astonishment. To dance butterfly-like over woods, fields, hills, and sinuous rivers, to grasp vast ever-changing vistas of scenery, are in themselves delicious. But when to these purely artistic joys are added those of power, when the roar of wondering cities rises upwards, and you lean over the bulwarks serenely conscious of superiority, you must be described as realizing here on earth one of the paradises of dreamland.

At about ten o’clock we passed over Grinstead, and shortly afterwards crossed the boundaries of Sussex. By this time the preparations on the aëronef were complete, and every one had been summoned to the citadel and told off to his post. And now there fell upon me the shadow of the coming disaster. The faces of the crew were savage, even Brandt had lost his kindliness. Burnett was surly, and asked how I liked my position. Rather nettled, I told him that at any rate my hands would be free from blood-stains. Then it occurred to me that I might glean some interesting news from Hartmann. Eager for some excitement, as the depression stole heavier and heavier upon me, I ascended to the upper deck and pressed the button by the gate of the sombre citadel. Thomas appeared and telephoned my request to see the captain. The reply came back that he was in the conning-tower, but would be glad to see me for a moment. Accordingly, I was not long in making my way along the passage that led from the citadel to that favoured spot.

“Well,” he said, “I trust your nerves are in order. The drama opens in an hour. Within three days’ time London will be in ruins, and Lord Macaulay’s New Zealander will be able to commence his survey.”

“Is there no way of avoiding it? In the name of humanity, captain, I beseech you to pause. Think of the agonies which this awful resolve must breed! Think——”

“No more of this,” he said sharply. “You are my guest. You may, if you wish, be landed. You may, if you wish, remain. But in the latter case you will conform to my ruling.”

“And that is?”

“That you hold your tongue when desired to. London, I say, as Cato said of Carthage, London must be destroyed.”

“You have the advantage, captain. But thank heaven this will be no catastrophe of my making. And now may I ask a rather leading question?”

“By all means. At the worst you can only be refused an answer.”

“When and how will the first blow be struck?”