’Directly I saw that fleet I was astonished not to have seen it before.

’I stood up softly, undesirous of disturbing my companions, but with my heart beating now rather more rapidly with surprise and excitement.  I strained my ears for any sound of guns along our front.  Almost instinctively I turned about for protection to the south and west, and peered; and then I saw coming as fast and much nearer to me, as if they had sprung out of the darkness, three banks of aeroplanes; a group of squadrons very high, a main body at a height perhaps of one or two thousand feet, and a doubtful number flying low and very indistinct.  The middle ones were so thick they kept putting out groups of stars.  And I realised that after all there was to be fighting in the air.

’There was something extraordinarily strange in this swift, noiseless convergence of nearly invisible combatants above the sleeping hosts.  Every one about me was still unconscious; there was no sign as yet of any agitation among the shipping on the main canal, whose whole course, dotted with unsuspicious lights and fringed with fires, must have been clearly perceptible from above.  Then a long way off towards Alkmaar I heard bugles, and after that shots, and then a wild clamour of bells.  I determined to let my men sleep on for as long as they could....

’The battle was joined with the swiftness of dreaming.  I do not think it can have been five minutes from the moment when I first became aware of the Central European air fleet to the contact of the two forces.  I saw it quite plainly in silhouette against the luminous blue of the northern sky.  The allied aeroplanes—­they were mostly French—­came pouring down like a fierce shower upon the middle of the Central European fleet.  They looked exactly like a coarser sort of rain.  There was a crackling sound—­the first sound I heard—­it reminded one of the Aurora Borealis, and I supposed it was an interchange of rifle shots.  There were flashes like summer lightning; and then all the sky became a whirling confusion of battle that was still largely noiseless.  Some of the Central European aeroplanes were certainly charged and overset; others seemed to collapse and fall and then flare out with so bright a light that it took the edge off one’s vision and made the rest of the battle disappear as though it had been snatched back out of sight.

’And then, while I still peered and tried to shade these flames from my eyes with my hand, and while the men about me were beginning to stir, the atomic bombs were thrown at the dykes.  They made a mighty thunder in the air, and fell like Lucifer in the picture, leaving a flaring trail in the sky.  The night, which had been pellucid and detailed and eventful, seemed to vanish, to be replaced abruptly by a black background to these tremendous pillars of fire....

’Hard upon the sound of them came a roaring wind, and the sky was filled with flickering lightnings and rushing clouds....