Now that we saw them all firing, for the first time we had some idea of the number that had been advanced into the conquered territory since July 1st. The ruins and the sticks of trees of Fricourt and Mametz with their few remaining walls stood out spectral in the flashes of batteries that had found nesting places among the debris. The whole slope had become a volcanic uproar. One might as well have tried to count the number of fireflies over a swamp as the flashes. The limitation of reckoning had been reached. Guns ahead of us and around us and behind us as usual, in a battle of competitive crashes among themselves, and near by we saw the figures of the gunners outlined in instants of weird lightning glow, which might include the horses of a caisson in a flicker of distinct silhouette flashed out of the night and then lost in the night, with the riders sitting as straight as if at drill. Every voice had one message, "This for the Ridge!" which was crowned by hell's tempest of shell-bursts to prepare the way for the rush by the infantry at "zero." The thing was majestic, diabolical, beautiful, absurd--anything you wished to call it. Look away from the near-by guns where the faces of the gunners were illumined and you could not conceive of the scene as being of human origin; but mixing awed humility with colossal egoism in varying compounds of imagination and fact, you might think of your little group of observers as occupying a point of view in space where one planet hidden in darkness was throwing aerolites at another hidden in darkness striking it with mighty explosions, and the crashes and screams were the sound of the missiles on their unlighted way. It was still dark when three-thirty came and pyrotechnics were added to the display, which I could not think of as being in any sense pyrotechnical, when out of the blanket as signals from the planet's surface in the direction of some new manoeuver appeared showers of glowing red sparks, which rose to a height of a hundred feet with a breadth of thirty or forty feet, it seemed at that distance. One shower was in the neighborhood of Ovillers, one at La Boisselle and one this side of Longueval. Then in the distance beyond Longueval the sky was illumined by a great conflagration not on the fireworks program, which must have been a German ammunition dump exploded by British shells.