He checked himself with a deprecatory gesture. “Really, you’ll have to pardon my outburst, old chap; but I wasn’t half sure that I wasn’t in line for invaliding out. Besides, I’ve been fairly itching to be ‘up’ all day. There’s been witchery in the air ever since sunrise. I’ve never known more perfect flying weather. Which reminds me, by the way, that the Zepps are expected in this vicinity to-night. They were on the ‘East Coast’ last night, you know. It’s just a little too clear for their purposes; but the air itself is perfect--_perfect_. There haven’t been more than one or two other such days for flying as this one since the war began. You can’t understand it till you’ve been in the air yourself. It was in the blood of all those chaps at dinner this evening. They talked about everything on earth except flying; and were thinking about nothing else but that. Didn’t you notice that they were as restive as the lions in the Zoo an hour before feeding time?” Throwing aside all reserve, Horne began to speak of his work--his love of it, the fascination of it, the great and increasingly important part it was playing in the war. This was precisely what, hoping against hope, I had been trying to draw him out on all the evening; and so, lighting a fresh cigar, I sank back contentedly in my armchair to play the part of the appreciative auditor. Scarcely was I well settled, however, when Horne abruptly ceased speaking and leaned forward with his head cocked in an attitude of attentive listening. “Did you hear that?” he whispered; “and that, and that?” “Nothing but the chatter of the first dribble of the supper crowd,” I answered. “What is it?” “Bombs,” was the reply; “three or four of them. And, I think, gun-fire. The Zepps must be nearer London than they have been at any time since last October. Let’s get down to the Embankment. We can see from there, if anywhere. They never wander far from the ‘river road.’” The Strand, packed with the crowds from the emptying theatres, was plainly oblivious and unalarmed, and I promptly taxed Horne with letting either the wine or the “perfect air conditions” go to his head. He said nothing, but, all the way down the black little canyon of a street along which we threaded our way, appeared to be listening intently. Not until we were about to emerge into the brighter blankness of the Embankment did he speak again. “There have been no more bombs,” he said, “but I think the guns are going right along. If the sound is too faint for your ‘unattuned’ ear, perhaps the fact that you hear no shunting of trains or whistling at Charing Cross or Waterloo (you know of the new order which halts all trains during air-raids) will convince you that the Zepps are about. Or if not that, then come along here and have some ocular evidence. What do you say to that?” And Horne pointed off down past the looming mass of St. Paul’s to where the stationary beam of a single searchlight laid low along the eastern horizon.