All this time the weird, uncanny silence that brooded over the streets before I had come indoors held the city in its spell. The watching thousands--nay, millions--kept their excitement in leash, and the propeller of the raider--muffled by the mists intervening between the earth and the 12,000 feet at which it whirred--dulled to a drowsy drone. Into this tense silence the sudden fire of a hundred anti-aircraft guns--opening in unison as though at the pull of a single lanyard--cut in a blended roar like the Crack o’ Doom; indeed, though few among those hushed watching millions realised it, it _was_ literally the Crack o’ Doom that was sounding. For perhaps a minute or a minute and a half the air was vibrant with the roar of hard-pumped guns and the shriek of speeding shell, the great sound from below drowning the sharper cracks from the steel-cold flashes in the upper air. It was guns that were built for the job--not the hastily gathered and wholly inadequate artillery of a year ago--that were speaking now, and the voice was one of ordered, imperious authority. Range-finders had the marauder’s altitude, and the information was being put at the disposal of guns that had the power to “deliver the goods” at that level. What a contrast the sequel was to that pitiful firing of the other raid! Only the opening shots were “shorts” or “wides” now, and ten seconds after the first gun a diamond-clear burst blinking out through a rift in the upper clouds told that the raider--to use a naval term--was “straddled,” had shells exploding both above and below it. From that instant till the guns ceased to roar, seventy or eighty seconds later, the shells burst, lacing the air with golden glimmers, and meshed the flying raider in a fiery net. For a few seconds it seemed to me that, close-woven as was the net of shell-bursts, the flashes came hardly as fast as the roar of the guns would seem to warrant, and I swept the heavens with my glasses in a search for other possible targets. But no other raider was in sight; there was no other “nodal centre” of gun-fire and searchlights. Suddenly the reason for the apparent discrepancy was clear to me. The flashes I saw (except for a few of the shrapnel bullets they were releasing) were only the misses; the hits I could not see. The long-awaited test was at its crucial stage. Empty of bombs and with half of its fuel consumed, the raider was at the zenith of its flight, and yet the guns were ranging it with ease. It was now a question of how much shell-fire the Zeppelin could stand.